Halo: Spartan Assault
25 Achievements
250
20-25h
PC
Mobile
Extra Credit
Complete 75 mission specific challenges
10
How to unlock the Extra Credit achievement in Halo: Spartan Assault - Definitive Guide
Shadow 00 Fox
TrueAchievements
TrueAchievements
06 Jun 2014 23:27
GLITCH WARNING!!
****UPDATE!! As of 12/27/2014, the glitch may have been fixed on the server side of this game finally! If you get this achievement despite glitched Assault Ops, please let us know!!****
This achievement can glitch, particularly Assault Ops for A-1 going over the correct count and not completing.
Glitch info and how to fix:
General Tips:
Enemies, Turrets, and Vehicle Descriptions:
I wrote this solution to be used with the Ctrl-F function to easily find whichever Op you are looking for. Simply type into the Ctrl-F search box whichever letter, number, and letter code you're looking for!(i.e. A-1a, D-2c, E3-b, etc)
Enjoy!!
All missions Assault Ops grouped by mission:
A-1
A-2
A-3
A-4
A-5
B-1
B-2
B-3
B-4
B-5
C-1
C-2
C-3
C-4
C-5
D-1
D-2
D-3
D-4
D-5
E-1
E-2
E-3
E-4
E-5
F-1
F-2
F-3
F-4
F-5
All missions Assault Ops at once(best for using Ctrl+F):
****UPDATE!! As of 12/27/2014, the glitch may have been fixed on the server side of this game finally! If you get this achievement despite glitched Assault Ops, please let us know!!****
This achievement can glitch, particularly Assault Ops for A-1 going over the correct count and not completing.
Glitch info and how to fix:
Update: My achievement WAS glitched, however, I just got my Extra Credit to pop anyway. I had copied the save from my glitched 360 Spartan Assault, through the cloud. I loaded up one of the missions I still needed to complete a Spartan Ops for, as my counter was at 88/90. I completed the Assault Op(mission E-4, Ghost vs. turret Assault Op), and Extra Credit popped right then and there, even with the counter showing 89/90. Apparently it will still count for the Xbox One if you have at least done the number needed, even if it doesn't show that it 'completed'. My current total of Elites for the Assault Op in A-1 is something like 145/20 now, definitely glitched, but the achievement still popped!!
Update!!: I just unglitched my 360 Spartan Assault Extra Credit.. check out that solution if you need to for info!
I'm including a way you can get it to pop if something like what I did doesn't work for you--see here:
Xbox One Fix:
In order to try to avoid the glitch, when you start your playthrough, be extremely careful with missions A-1a through A-1c. I don't know of any specific way to avoid the glitch, but very carefully approach the right numbers, avoid freezing the game(if you can), and treat it like you're in a fine china shop. Not walking under a ladder or breaking a mirror earlier in the day might help too, there's been no definitive research there though unfortunately. I just hope you can avoid the glitch!!
Update!!: I just unglitched my 360 Spartan Assault Extra Credit.. check out that solution if you need to for info!
I'm including a way you can get it to pop if something like what I did doesn't work for you--see here:
Xbox One Fix:
Method to fix your Xbox One Extra Credit glitch:
Note: I successfully used this fix!
XBOX ONE FIX - All Credit to "MathGuy42"
1. Disconnect Internet.
2. Delete console save.
3. Start SA. You can Cancel the attempt to sync. Boot up will be slow as the game attempts to connect to the Internet.
4. Play A-1 to get the Ops you need.
5. Shutdown game (using Quit Game on the Home screen).
6. Reconnect Internet.
Note: I successfully used this fix!
XBOX ONE FIX - All Credit to "MathGuy42"
1. Disconnect Internet.
2. Delete console save.
3. Start SA. You can Cancel the attempt to sync. Boot up will be slow as the game attempts to connect to the Internet.
4. Play A-1 to get the Ops you need.
5. Shutdown game (using Quit Game on the Home screen).
6. Reconnect Internet.
In order to try to avoid the glitch, when you start your playthrough, be extremely careful with missions A-1a through A-1c. I don't know of any specific way to avoid the glitch, but very carefully approach the right numbers, avoid freezing the game(if you can), and treat it like you're in a fine china shop. Not walking under a ladder or breaking a mirror earlier in the day might help too, there's been no definitive research there though unfortunately. I just hope you can avoid the glitch!!
General Tips:
You can select "Abort Mission" or "Restart Mission" during a mission and progress will still save.
In general, the damage boost upgrade is the most useful. Consider using it for any mission if you have the credits.(fastest way to get extra credits is to replay the first mission with the Hollow and Pacifist skulls on. You can get 1000XP very fast this way once you get it down using your Regeneration ability at the right times)
And a time saving tip that Chucklestyle reminded me of: as long as you don't finish the mission, but deliberately fail or die or restart, you will keep the upgrades you purchased before the mission started. This is a great way of not spending extra credits and getting great mileage out of your one buy to work on Assault Ops!
In general, the damage boost upgrade is the most useful. Consider using it for any mission if you have the credits.(fastest way to get extra credits is to replay the first mission with the Hollow and Pacifist skulls on. You can get 1000XP very fast this way once you get it down using your Regeneration ability at the right times)
And a time saving tip that Chucklestyle reminded me of: as long as you don't finish the mission, but deliberately fail or die or restart, you will keep the upgrades you purchased before the mission started. This is a great way of not spending extra credits and getting great mileage out of your one buy to work on Assault Ops!
Enemies, Turrets, and Vehicle Descriptions:
Enemies:
Turrets:
Vehicles:
Flood: (only in Co-op missions, but here for reference)
Grunts(Unggoy):
Grunt Minor--Small enemy wearing a yellow vest that often runs around and squeals funny. Usually carries a plasma pistol.
Suicide Grunt--Grunt that runs straight at you holding a plasma grenade in each hand--Run or Kill!
Grunt Major(Unggoy Ultra)--Grunt in grey fatigues... with better weapons than Grunt Minors. I think they can carry Fuel Rod Cannons to Needlers depending on the mission.
Elites(Sangheili):
Elite Minor--Tall blue enemy that is very agile, has an energy shield and plasma rifle or needler.
Elite Major--Looks like regular elites but is red and carries a focus rifle.
Stealth Elite--Elite that is camouflaged and carries energy swords. Look for faint shimmers of grey/white for the outline.
Elite Zealot--Elite that is yellow, carries a plasma rifle, and is harder to kill.
Drones(Yanme'e)--The only flying enemies, usually come out of holes in the ground and carry plasma pistols.
Jackals(Kig-Yar Minor)--Little enemies with energy shield 'shields' and a needler.
Brutes(Jirilhanae):
Jump-Pack Brutes--Very stocky bear-like enemies that have more health than other enemies and carry Bruteshot weapons.
Brute Chieftain--Just like regular Brutes, except carries a Gravity Hammer and is very dangerous. Also wears a fancy helmet.
Grunt Minor--Small enemy wearing a yellow vest that often runs around and squeals funny. Usually carries a plasma pistol.
Suicide Grunt--Grunt that runs straight at you holding a plasma grenade in each hand--Run or Kill!
Grunt Major(Unggoy Ultra)--Grunt in grey fatigues... with better weapons than Grunt Minors. I think they can carry Fuel Rod Cannons to Needlers depending on the mission.
Elites(Sangheili):
Elite Minor--Tall blue enemy that is very agile, has an energy shield and plasma rifle or needler.
Elite Major--Looks like regular elites but is red and carries a focus rifle.
Stealth Elite--Elite that is camouflaged and carries energy swords. Look for faint shimmers of grey/white for the outline.
Elite Zealot--Elite that is yellow, carries a plasma rifle, and is harder to kill.
Drones(Yanme'e)--The only flying enemies, usually come out of holes in the ground and carry plasma pistols.
Jackals(Kig-Yar Minor)--Little enemies with energy shield 'shields' and a needler.
Brutes(Jirilhanae):
Jump-Pack Brutes--Very stocky bear-like enemies that have more health than other enemies and carry Bruteshot weapons.
Brute Chieftain--Just like regular Brutes, except carries a Gravity Hammer and is very dangerous. Also wears a fancy helmet.
Turrets:
Covenant:
Shade Turret--Stands on a tripod base, is pink, and fires pink/white plasma bolts. Elites and Grunts generally use these.
AA Turret--VERY dangerous Covenant Turret. Fires massive green plasma bolts that cause extreme damage. Not usable by Spartans.
UNSC:
Machine-Gun Turret--Looks like a chain-gun attached to a small metal stand on a metal circular base. Fires bullets at a very high rate of speed and is extremely effective against ALL enemies.
Shade Turret--Stands on a tripod base, is pink, and fires pink/white plasma bolts. Elites and Grunts generally use these.
AA Turret--VERY dangerous Covenant Turret. Fires massive green plasma bolts that cause extreme damage. Not usable by Spartans.
UNSC:
Machine-Gun Turret--Looks like a chain-gun attached to a small metal stand on a metal circular base. Fires bullets at a very high rate of speed and is extremely effective against ALL enemies.
Vehicles:
Covenant:
Ghost--Small red/purple vehicle that floats over the ground and has two front facing plasma repeaters. Very effective in any mission where it's usable. Hijack-able.
Wraith--Large blue Covenant vehicle that fires Plasma Artillery Balls over long distances in an arc. Massive damage and quite effective. Hijack-able.
AA Wraith--Like the Wraith, except yellow/brownish and not very effective because you can't fire the gun effectively.
UNSC:
Elephant--Huge lumbering vehicle that is not Spartan usable but is really cool.... if only you could use it.
Scorpion--Main battle tank of the UNSC, one main high calibre gun and a small secondary machine-gun. Very effective whenever you get to use it. Better than the Wraith.
Grizzly--Special battle tank version; this is a BEAST. It destroys anything and everything with it's twin main cannons and secondary machine-guns to mop up the leftovers. VERY EFFECTIVE.
Ghost--Small red/purple vehicle that floats over the ground and has two front facing plasma repeaters. Very effective in any mission where it's usable. Hijack-able.
Wraith--Large blue Covenant vehicle that fires Plasma Artillery Balls over long distances in an arc. Massive damage and quite effective. Hijack-able.
AA Wraith--Like the Wraith, except yellow/brownish and not very effective because you can't fire the gun effectively.
UNSC:
Elephant--Huge lumbering vehicle that is not Spartan usable but is really cool.... if only you could use it.
Scorpion--Main battle tank of the UNSC, one main high calibre gun and a small secondary machine-gun. Very effective whenever you get to use it. Better than the Wraith.
Grizzly--Special battle tank version; this is a BEAST. It destroys anything and everything with it's twin main cannons and secondary machine-guns to mop up the leftovers. VERY EFFECTIVE.
Flood: (only in Co-op missions, but here for reference)
Small Infection Forms--tiny little head-shaped enemies with many tentacles. Always attack in large groups and not very dangerous.
Yellow Infection Forms--Slightly bigger than common infection forms, Yellow, and Very dangerous is they can latch on as they destroy your shield and you cannot get them off unless your teammate shoots them. Normally only spawn from certain dead Combat Forms.
Combat Forms--Flood enemies that vary depending on type of Covenant or UNSC force they were before. They look like mutated versions of what they used to be, whether formerly Elite, Brute, or UNSC. Common ones are Shotgun, Assault Rifle, Battle Rifle, Grenade, and Bruteshot Combat Forms.
Yellow Infection Forms--Slightly bigger than common infection forms, Yellow, and Very dangerous is they can latch on as they destroy your shield and you cannot get them off unless your teammate shoots them. Normally only spawn from certain dead Combat Forms.
Combat Forms--Flood enemies that vary depending on type of Covenant or UNSC force they were before. They look like mutated versions of what they used to be, whether formerly Elite, Brute, or UNSC. Common ones are Shotgun, Assault Rifle, Battle Rifle, Grenade, and Bruteshot Combat Forms.
I wrote this solution to be used with the Ctrl-F function to easily find whichever Op you are looking for. Simply type into the Ctrl-F search box whichever letter, number, and letter code you're looking for!(i.e. A-1a, D-2c, E3-b, etc)
Enjoy!!
All missions Assault Ops grouped by mission:
A-1
A-1a
Warm Up That Pitching Arm
Kill 3 Grunt Minors with Frag Grenades
Easy--Very Fast. You start with Frag Grenades and Grunt Minors are the first attackers. Just 'Lt' at them and you've got it.
A-1b
Rookie Target Practice
Kill 20 Elite Minors
Very Easy--Slow. This will make you replay the mission multiple times, as there are only 4 Elites in it.
A-1c
Sidearm Slaughter
Kill 50 Grunt Minors with a Magnum
Very Easy--Slow. Annother one that makes you have to replay it, combine this with the previous Assault Op. Switch to your one-hit-kill Magnum and have at it!
Warm Up That Pitching Arm
Kill 3 Grunt Minors with Frag Grenades
Easy--Very Fast. You start with Frag Grenades and Grunt Minors are the first attackers. Just 'Lt' at them and you've got it.
A-1b
Rookie Target Practice
Kill 20 Elite Minors
Very Easy--Slow. This will make you replay the mission multiple times, as there are only 4 Elites in it.
A-1c
Sidearm Slaughter
Kill 50 Grunt Minors with a Magnum
Very Easy--Slow. Annother one that makes you have to replay it, combine this with the previous Assault Op. Switch to your one-hit-kill Magnum and have at it!
A-2
A-2a
A Shady Detonation
Destroy 2 Shade Turrets with Plasma Grenades
Very Easy--Very Fast. Remember, the Shade Turrets are the ones that the Grunts jump into to shoot at you. It takes 2 Plasmas to take one out, so I recommend using a Frag or other weapon first then your Plasma.
A-2b
Scorch Mark
Kill 20 Grunt Minors with a Plasma Pistol
Easy--Fast. This one goes quickly, with a few level repeats. Shoot the grunt right at the start with your pistol, grab his pistol, and 'headshot' the grunts from then on. Repeat until you get it. Combine this with the next Assault Op! Probably 3 playthroughs for this one.
A-2c
Taste Your Own Medicine!
Kill 40 Elite Minors with Plasma Repeaters
Very Easy--Slow. Almost the same as above, except kill the Elite right at the start, then use his gun on the rest. Alternatively, you could run past the first Elite to the weapons crate, grab a Repeater, and kill that Elite. If you kill him first, then you can get 5 Elites per playthrough, If you pick up the weapon first you can get 6. Combine with The previous Assault Op.
A Shady Detonation
Destroy 2 Shade Turrets with Plasma Grenades
Very Easy--Very Fast. Remember, the Shade Turrets are the ones that the Grunts jump into to shoot at you. It takes 2 Plasmas to take one out, so I recommend using a Frag or other weapon first then your Plasma.
A-2b
Scorch Mark
Kill 20 Grunt Minors with a Plasma Pistol
Easy--Fast. This one goes quickly, with a few level repeats. Shoot the grunt right at the start with your pistol, grab his pistol, and 'headshot' the grunts from then on. Repeat until you get it. Combine this with the next Assault Op! Probably 3 playthroughs for this one.
A-2c
Taste Your Own Medicine!
Kill 40 Elite Minors with Plasma Repeaters
Very Easy--Slow. Almost the same as above, except kill the Elite right at the start, then use his gun on the rest. Alternatively, you could run past the first Elite to the weapons crate, grab a Repeater, and kill that Elite. If you kill him first, then you can get 5 Elites per playthrough, If you pick up the weapon first you can get 6. Combine with The previous Assault Op.
A-3
A-3a
Gung Ho!
Destroy 3 Shade Turrets with a Plasma Pistol
Easy--Fast. Shade Turrets take two Grenades to blow up, so use one Grenade then Plasma overcharge the turrets. You can grab a Plasma Pistol off the first Grunt. If you're fast, you can combine this with the score challenge, but not recommended. You can definitely combine this with the 40 Grunt kills to save time.
A-3b
Expert Target Practice
Kill 30 Elite Minors with an Assault Rifle
Very Easy--Slow. Keep your Assault Rifle, and keep replaying the level. I think you get about 7-8 Elites per playthrough, so it's not many repeats. I got this one last of the three.
A-3c
Sentry Post
Kill 40 Grunt Minors with a Shade Turret
Medium--Slow. Use your Armor Ability and run to each Shade Turret. You can start firing almost as soon as you're in it and it points, so rush to different turrets and target all the Grunts. You can also target grunts who are off-screen! There are a LOT of grunts in this level, so you should get this in about 3 playthroughs if you get them all each go. Combine with the Elite Minors Assault Op--jump out of the turret fast when you see an Elite.
Gung Ho!
Destroy 3 Shade Turrets with a Plasma Pistol
Easy--Fast. Shade Turrets take two Grenades to blow up, so use one Grenade then Plasma overcharge the turrets. You can grab a Plasma Pistol off the first Grunt. If you're fast, you can combine this with the score challenge, but not recommended. You can definitely combine this with the 40 Grunt kills to save time.
A-3b
Expert Target Practice
Kill 30 Elite Minors with an Assault Rifle
Very Easy--Slow. Keep your Assault Rifle, and keep replaying the level. I think you get about 7-8 Elites per playthrough, so it's not many repeats. I got this one last of the three.
A-3c
Sentry Post
Kill 40 Grunt Minors with a Shade Turret
Medium--Slow. Use your Armor Ability and run to each Shade Turret. You can start firing almost as soon as you're in it and it points, so rush to different turrets and target all the Grunts. You can also target grunts who are off-screen! There are a LOT of grunts in this level, so you should get this in about 3 playthroughs if you get them all each go. Combine with the Elite Minors Assault Op--jump out of the turret fast when you see an Elite.
A-4
A-4a
Stick To This!
Kill 5 Elite Minors with Plasma Grenades
Hard--Fast. For this one, jump into the Wraith, destroy the barrier, then proceed upwards on foot. You have the Speed Armor Ability so use it! There's one Elite close, and several more through the level. Try to get a sticky, otherwise they'll dodge. There are more plasmas near the start, go a little up, and on the right side where the Wraith tank won't fit, there are two grunts, two shields, and some plasmas. You can also find more plasmas through the level from dead enemies and some just south of the last AA Wraith. Combine with the next Assault Op.
A-4b
Burn Ward
Kill 30 Grunt Minors with a Plasma Repeater
Easy--Normal. You start with a Repeater. Like the last, use the Wraith to destroy the barrier, then proceed upwards on foot annihilating all Grunts with your Repeater. You can get more ammo for it from a weapons cache on the left side more than half-way through the level, and of course, dead Elites... combine with the previous Assault Op if you can.
A-4c
Wrath of the Wraith
Destroy 15 Wraiths with a Wraith
Very Easy--Fast. Jump in the Wraith, and go to town! This was fun, and there's really nothing to say, other than, make sure to keep dodging enemy wraith shots, and keep far enough away that their plasma gunner can't shoot. First time I played this level, I lost my Wraith. Last time I played the level, my Wraith ended with 75% health.
Stick To This!
Kill 5 Elite Minors with Plasma Grenades
Hard--Fast. For this one, jump into the Wraith, destroy the barrier, then proceed upwards on foot. You have the Speed Armor Ability so use it! There's one Elite close, and several more through the level. Try to get a sticky, otherwise they'll dodge. There are more plasmas near the start, go a little up, and on the right side where the Wraith tank won't fit, there are two grunts, two shields, and some plasmas. You can also find more plasmas through the level from dead enemies and some just south of the last AA Wraith. Combine with the next Assault Op.
A-4b
Burn Ward
Kill 30 Grunt Minors with a Plasma Repeater
Easy--Normal. You start with a Repeater. Like the last, use the Wraith to destroy the barrier, then proceed upwards on foot annihilating all Grunts with your Repeater. You can get more ammo for it from a weapons cache on the left side more than half-way through the level, and of course, dead Elites... combine with the previous Assault Op if you can.
A-4c
Wrath of the Wraith
Destroy 15 Wraiths with a Wraith
Very Easy--Fast. Jump in the Wraith, and go to town! This was fun, and there's really nothing to say, other than, make sure to keep dodging enemy wraith shots, and keep far enough away that their plasma gunner can't shoot. First time I played this level, I lost my Wraith. Last time I played the level, my Wraith ended with 75% health.
A-5
A-5a
Meatgrinder Mayhem
Kill 15 Grunt Minors with a Machine Gun Turret
Very Easy--Fast. The main turret you'll want to use is the one at the top of the Hornet landing pad. You can probably get all 15 Grunt Minors in one go. Remember though, the yellow ones are Grunt Minors, the white are Grunt Majors. If you don't get it all in one go at that turret, run around to the bottom turret, and go back and forth until you get it.
A-5b
Sting Like a Bee
Destroy 4 Wraiths with a Magnum
Very Hard--Slowest. There are 3 Wraiths that show up at the end of the mission. One Wraith shows up through the bottom barrier with one minute left, and two more come through the left and right barriers just after when the first countdown reaches zero. To destroy the Wraith with a Magnum though, you need to damage it first with something else down to about 3 bars or less. I recommend using a damage booster when going for this Assault Op. The best way to damage the Wraith is with Plasmas, they take it's health down very fast, and I believe two Plasmas take it's health down about 70-90%. The elites will jump out when it's at about 30% damage though and you can't tell how little health is left at that point because the health bar disappears. So, you could use Plasmas, sentry turrets work very well, or you could even hijack the Wraith and then get yourself shot up while watching the health bar. JUMP OUT before it gets destroyed though or you fail the mission! Either way you do it, Sentry Turrets and Grenades are the best, DO NOT USE the Magnum only, it will run out of ammo fast and I never found more Magnum ammo on the map. Even worse, there are only 3 Wraiths per playthrough and they are at the very end of the playthrough; so if you die, you have to restart and do the base defense all over again; and, there's a 25 second timer that starts once the base is defended so you have just a few seconds before the mission ends. 25 seconds to damage and destroy two more Wraiths with the Pistol.
A-5c
Stand-Off Shootout
Kill 100 Covenant with the Shotgun
Easy--Slow. Run around with your starting Shotgun blasting Grunts in the face! The grunts all die fast, there's more shotgun ammo above the base and in a weapon's cache on the left corner of the actual landing pad. It will take more than one playthrough, but kinda fun.
Meatgrinder Mayhem
Kill 15 Grunt Minors with a Machine Gun Turret
Very Easy--Fast. The main turret you'll want to use is the one at the top of the Hornet landing pad. You can probably get all 15 Grunt Minors in one go. Remember though, the yellow ones are Grunt Minors, the white are Grunt Majors. If you don't get it all in one go at that turret, run around to the bottom turret, and go back and forth until you get it.
A-5b
Sting Like a Bee
Destroy 4 Wraiths with a Magnum
Very Hard--Slowest. There are 3 Wraiths that show up at the end of the mission. One Wraith shows up through the bottom barrier with one minute left, and two more come through the left and right barriers just after when the first countdown reaches zero. To destroy the Wraith with a Magnum though, you need to damage it first with something else down to about 3 bars or less. I recommend using a damage booster when going for this Assault Op. The best way to damage the Wraith is with Plasmas, they take it's health down very fast, and I believe two Plasmas take it's health down about 70-90%. The elites will jump out when it's at about 30% damage though and you can't tell how little health is left at that point because the health bar disappears. So, you could use Plasmas, sentry turrets work very well, or you could even hijack the Wraith and then get yourself shot up while watching the health bar. JUMP OUT before it gets destroyed though or you fail the mission! Either way you do it, Sentry Turrets and Grenades are the best, DO NOT USE the Magnum only, it will run out of ammo fast and I never found more Magnum ammo on the map. Even worse, there are only 3 Wraiths per playthrough and they are at the very end of the playthrough; so if you die, you have to restart and do the base defense all over again; and, there's a 25 second timer that starts once the base is defended so you have just a few seconds before the mission ends. 25 seconds to damage and destroy two more Wraiths with the Pistol.
A-5c
Stand-Off Shootout
Kill 100 Covenant with the Shotgun
Easy--Slow. Run around with your starting Shotgun blasting Grunts in the face! The grunts all die fast, there's more shotgun ammo above the base and in a weapon's cache on the left corner of the actual landing pad. It will take more than one playthrough, but kinda fun.
B-1
B-1a
Wave Breaker
Kill 20 Suicide Grunts with a Machine Gun Turret
Very Easy--Very Fast. Just jump on one of the Gun Turrets right outside the base and fire away! Grunts start coming right away, just make sure to get the Elites too.
B-1b
Ring of Fire
Kill 30 Grunt Majors with an Incendiary Grenade
Medium--Slow. You start with 3 Incendiary Grenades, and there are 3 more in a grenade box near the middle of the map. So, you have only 6 Grenades per try. Remember, you are going for the white Grunt Majors with the Incendiaries, and try to combine this with meleeing Suicide Grunts. You'll have to restart quite a few times to get your 30, at least 5 times or more.
B-1c
Power Punch-Out
Kill 40 Suicide Grunts with a Melee Attack
Easy--Medium. For this one, I'd recommend spending some XP on an Overshield bonus for this mission, as I did this without the overshield and kept dying from the suicide grenades. You'll probably have to restart the level a few times, but with an overshield bonus you can do this WAY faster than I did it. The Sprint Armor Ability pickup is useful if you don't use the Overshield Armor Ability though. It is located to the right side of the map, right next to the destroyed Wraith. If you use the Sprint ability, you can rush around the map, and if you're quick enough, you can even string a couple suicide melees together.
Wave Breaker
Kill 20 Suicide Grunts with a Machine Gun Turret
Very Easy--Very Fast. Just jump on one of the Gun Turrets right outside the base and fire away! Grunts start coming right away, just make sure to get the Elites too.
B-1b
Ring of Fire
Kill 30 Grunt Majors with an Incendiary Grenade
Medium--Slow. You start with 3 Incendiary Grenades, and there are 3 more in a grenade box near the middle of the map. So, you have only 6 Grenades per try. Remember, you are going for the white Grunt Majors with the Incendiaries, and try to combine this with meleeing Suicide Grunts. You'll have to restart quite a few times to get your 30, at least 5 times or more.
B-1c
Power Punch-Out
Kill 40 Suicide Grunts with a Melee Attack
Easy--Medium. For this one, I'd recommend spending some XP on an Overshield bonus for this mission, as I did this without the overshield and kept dying from the suicide grenades. You'll probably have to restart the level a few times, but with an overshield bonus you can do this WAY faster than I did it. The Sprint Armor Ability pickup is useful if you don't use the Overshield Armor Ability though. It is located to the right side of the map, right next to the destroyed Wraith. If you use the Sprint ability, you can rush around the map, and if you're quick enough, you can even string a couple suicide melees together.
B-2
B-2a
Up Close and Personal
Kill 20 Elite Minors with a Shotgun
Normal--Easiest. You'll want to switch to a Shotgun at the start from the ammo crates. Also grab the Speed Armor Ability. Then, work on this one at the same time as the other two Assault Ops. There are enough Elites in the level to get this in one go, but don't worry about restarting or playing another as you work for all three Assault Ops. Elites go down in 1 or 2 Shotgun shots. There is more Shotgun ammo scattered through the level so don't worry about running out.
B-2b
Chain Reaction
Kill 50 Suicide Grunts with SMGs
Easiest--Medium. Very simple, just wait for the defense segments of the mission, and then lay into the Suicide Grunts with your SMGs. There are very many Suicide Grunts, so you could get this in one go probably(I died plenty being stupid with my shields down, lol), so had several go's at this. Quite fun.
B-2c
Burn Baby Burn!
Kill 100 Covenant with Incendiary Grenades
Easiest--Slow. This looks hard at first, but you can spawn camp the Covenant!! A max of 11 Incendiary Grenades(IG's) are in this mission. You start with 2 IG's, you'll want to pick up the 3 near the start, and then move to the first defense part. Watch where the Covenant are spawning through the barriers, and then throw 2 IG's, one to each spawn point, and watch the Covenant walk into the flame and burn up. When the flame dies out, make some more! When you run out of IG's, mop up this area, stock up on ammo, and move to the next defense portion picking up the 3 more IG's on the right side of the path when you're almost there. Repeat the same thing as before with the spawn points. When you run out of IG's, there are 3 more IG's on the path to the south starting below the Wolverines, along with a few Grunts. Pick those up, run back up top, and spawn camp some more. This will take a few retries of the mission to get all 100, but it's fun.
Up Close and Personal
Kill 20 Elite Minors with a Shotgun
Normal--Easiest. You'll want to switch to a Shotgun at the start from the ammo crates. Also grab the Speed Armor Ability. Then, work on this one at the same time as the other two Assault Ops. There are enough Elites in the level to get this in one go, but don't worry about restarting or playing another as you work for all three Assault Ops. Elites go down in 1 or 2 Shotgun shots. There is more Shotgun ammo scattered through the level so don't worry about running out.
B-2b
Chain Reaction
Kill 50 Suicide Grunts with SMGs
Easiest--Medium. Very simple, just wait for the defense segments of the mission, and then lay into the Suicide Grunts with your SMGs. There are very many Suicide Grunts, so you could get this in one go probably(I died plenty being stupid with my shields down, lol), so had several go's at this. Quite fun.
B-2c
Burn Baby Burn!
Kill 100 Covenant with Incendiary Grenades
Easiest--Slow. This looks hard at first, but you can spawn camp the Covenant!! A max of 11 Incendiary Grenades(IG's) are in this mission. You start with 2 IG's, you'll want to pick up the 3 near the start, and then move to the first defense part. Watch where the Covenant are spawning through the barriers, and then throw 2 IG's, one to each spawn point, and watch the Covenant walk into the flame and burn up. When the flame dies out, make some more! When you run out of IG's, mop up this area, stock up on ammo, and move to the next defense portion picking up the 3 more IG's on the right side of the path when you're almost there. Repeat the same thing as before with the spawn points. When you run out of IG's, there are 3 more IG's on the path to the south starting below the Wolverines, along with a few Grunts. Pick those up, run back up top, and spawn camp some more. This will take a few retries of the mission to get all 100, but it's fun.
B-3
B-3a
Pincushion
Kill 20 Jackals with a Needler
Easiest--Normal. This is the easy Assault Op. Simply gun down a Jackal, take his Needler, and then shoot all the other Jackals with the Needler taking their Needler ammo as you go. You should be able to get this on your first run if you don't die. Combine with the other Assault Ops!
B-3b
Trigger Happy Demolition
Destroy 10 Shade Turrets with the Shotgun
Easy--Very Slow. Annoying Assault Op, there are only two Shade Turrets on the map. Simply throw one Frag Grenade at them then Shotgun them to pieces. Very quick once you get to the Turrets. Frags are better because the Grunts jump out after the grenade hits. There's one Turret up to the right and one Turret down to the left. I don't believe the Fuel Rod Turret counts for this. 5 restarts required minimum! Also, it seems like it sometimes doesn't count the Shotgun Turret kills.
B-3c
Catch!
Kill 50 Grunt Majors with Grenades
Normal--Very Slow. Another annoying one that requires restarts. The only Grunt Majors on the map are around the Gold Elites at the top right of the map. There are approximately 10 white Grunt Majors up there. You could die after killing them though to get quicker progress and to quickly restart the level.
Pincushion
Kill 20 Jackals with a Needler
Easiest--Normal. This is the easy Assault Op. Simply gun down a Jackal, take his Needler, and then shoot all the other Jackals with the Needler taking their Needler ammo as you go. You should be able to get this on your first run if you don't die. Combine with the other Assault Ops!
B-3b
Trigger Happy Demolition
Destroy 10 Shade Turrets with the Shotgun
Easy--Very Slow. Annoying Assault Op, there are only two Shade Turrets on the map. Simply throw one Frag Grenade at them then Shotgun them to pieces. Very quick once you get to the Turrets. Frags are better because the Grunts jump out after the grenade hits. There's one Turret up to the right and one Turret down to the left. I don't believe the Fuel Rod Turret counts for this. 5 restarts required minimum! Also, it seems like it sometimes doesn't count the Shotgun Turret kills.
B-3c
Catch!
Kill 50 Grunt Majors with Grenades
Normal--Very Slow. Another annoying one that requires restarts. The only Grunt Majors on the map are around the Gold Elites at the top right of the map. There are approximately 10 white Grunt Majors up there. You could die after killing them though to get quicker progress and to quickly restart the level.
B-4
B-4a
Clean-Up on Aisle Epsilon
Kill 20 Grunt Majors with a Shotgun
Easy--Slow. There is a Shotgun near the start of the bridge you need to cross, lying in front of some wreckage, in the middle of the bridge. There is also another Shotgun halfway across the bridge near the north side of the bridge. The white Grunt Majors are along the two paths up into the Mega Turrets. There are 8 on each run through, with 5 on the left path and 3 on the right so this will take a minimum of 3 run-throughs. They are very easy targets if you keep moving.
B-4b
Plasma Perimeter
Kill 10 Elite Minors with a Shade Turret
Normal--Medium. There are a few tricks to this. You can either do it using the Speed Armor Ability which is found at the very east barrier screen. Or, a very handy little trick is running close to a Grunt occupied Shade Turret, then throwing your default Armor Ability which is the Decoy. The enemies all shoot at it and you can just run up to a Shade and hit "X" to hijack it, then shoot the surrounding Elite(s). You'll have to repeat the mission a few times for this. Try to combine the Assault Ops here.
B-4c
Staring Death in the Eyes
Kill 30 Elite Minors with a Wraith
Easy--Slow. You need to be careful to not get blown up by the Mega Turrets while attacking in a Wraith. The only Elites in this mission are Elite Minors, so no worries there. There are quite a few Elites, at least 10 each time, so this should take 4-5 tries depending on how you kill the Elites. There are 3 Wraiths in the mission, two you can drive and one hijackable, but it's really not worth it if you can keep your Wraith alive. I'd also recommend just doing the first part repeatedly as the rest of the Elites are too far into the mission to make it worth while unless you're doing the other Assault Ops still. Basically, run to the first empty Wraith, kill all the Elites on the bridge, shoot the occupied Wraith past the bridge so the Elite jumps out then kill him, go up the left path past the Grunt Majors and get 2 more Elites up that path, then suicide or restart mission.
Clean-Up on Aisle Epsilon
Kill 20 Grunt Majors with a Shotgun
Easy--Slow. There is a Shotgun near the start of the bridge you need to cross, lying in front of some wreckage, in the middle of the bridge. There is also another Shotgun halfway across the bridge near the north side of the bridge. The white Grunt Majors are along the two paths up into the Mega Turrets. There are 8 on each run through, with 5 on the left path and 3 on the right so this will take a minimum of 3 run-throughs. They are very easy targets if you keep moving.
B-4b
Plasma Perimeter
Kill 10 Elite Minors with a Shade Turret
Normal--Medium. There are a few tricks to this. You can either do it using the Speed Armor Ability which is found at the very east barrier screen. Or, a very handy little trick is running close to a Grunt occupied Shade Turret, then throwing your default Armor Ability which is the Decoy. The enemies all shoot at it and you can just run up to a Shade and hit "X" to hijack it, then shoot the surrounding Elite(s). You'll have to repeat the mission a few times for this. Try to combine the Assault Ops here.
B-4c
Staring Death in the Eyes
Kill 30 Elite Minors with a Wraith
Easy--Slow. You need to be careful to not get blown up by the Mega Turrets while attacking in a Wraith. The only Elites in this mission are Elite Minors, so no worries there. There are quite a few Elites, at least 10 each time, so this should take 4-5 tries depending on how you kill the Elites. There are 3 Wraiths in the mission, two you can drive and one hijackable, but it's really not worth it if you can keep your Wraith alive. I'd also recommend just doing the first part repeatedly as the rest of the Elites are too far into the mission to make it worth while unless you're doing the other Assault Ops still. Basically, run to the first empty Wraith, kill all the Elites on the bridge, shoot the occupied Wraith past the bridge so the Elite jumps out then kill him, go up the left path past the Grunt Majors and get 2 more Elites up that path, then suicide or restart mission.
B-5
B-5a
Head On!
Destroy 20 Wraiths with a Scorpion
Easy--Medium. This will require at least 3 playthroughs because there are only 7 Wraiths each time. Really easy, basically blow up everything you can see. Really fun!
B-5b
Fight Vapor with Fire
Destroy 30 Ghosts with a Scorpion
Easy--Slow. This will require at least 5 playthroughs. I think there are only about 7 Ghosts each playthrough, and they are scattered all around the map. Just blow everything up, and combine this with the Wraiths.
B-5c
Back to the Grave
Destroy 20 Wraiths with a Ghost
Normal--Medium. This is fun, as the Ghost is so extremely powerful! I recommend either jumping out of the Scorpion at the start and using your Speed Armor Ability to get over to my favorite Ghost, all the way to the right side. It's occupied, but you can easily Speed Boost around it and hijack it with "X". Or, you can run the Scorpion that way, but DO NOT destroy the Wraith in your path. You'll want to take that out with the Ghost.
Head On!
Destroy 20 Wraiths with a Scorpion
Easy--Medium. This will require at least 3 playthroughs because there are only 7 Wraiths each time. Really easy, basically blow up everything you can see. Really fun!
B-5b
Fight Vapor with Fire
Destroy 30 Ghosts with a Scorpion
Easy--Slow. This will require at least 5 playthroughs. I think there are only about 7 Ghosts each playthrough, and they are scattered all around the map. Just blow everything up, and combine this with the Wraiths.
B-5c
Back to the Grave
Destroy 20 Wraiths with a Ghost
Normal--Medium. This is fun, as the Ghost is so extremely powerful! I recommend either jumping out of the Scorpion at the start and using your Speed Armor Ability to get over to my favorite Ghost, all the way to the right side. It's occupied, but you can easily Speed Boost around it and hijack it with "X". Or, you can run the Scorpion that way, but DO NOT destroy the Wraith in your path. You'll want to take that out with the Ghost.
C-1
C-1a
Precision Disassembly
Destroy 4 Shade Turrets with a Focus Rifle
Easy--Slow. There are several Elite Majors in this mission. Take the Focus Rifle from the first one you see, and use it on the only Shade Turret in the mission. For a much easier time, hit the Turret with 1 Grenade of any type, then finish it off with the Focus Rifle. Minimum 4 playthroughs for this one Assault Op.
C-1b
Shooting Range
Kill 50 Covenant using Rifles
Very Easy--Medium. You start with a Rifle, and there are lots of easy covenant targets through the mission. You could even kill your teammates for more Rifle ammo. It's a really short mission also, so repeats quickly.
C-1c
Plasma Burn
Kill 40 Covenant with Plasma Grenades
Medium--Slow. This is an annoying Assault Op because you have to rely on grenade drops from Covenant since there are only 3 Plasma Grenades to pick up in the mission, over halfway through it on the north-west side of the main path. I discovered though that if you kill Elite Minors with grenade hits, they seem to more often drop plasmas, which you can then promptly hit some Grunts or Jackals with. Also, Elite Majors(red) always drop a Plasma. Quite luck based, it will take several playthroughs minimum, up to 10+ playthroughs.
Precision Disassembly
Destroy 4 Shade Turrets with a Focus Rifle
Easy--Slow. There are several Elite Majors in this mission. Take the Focus Rifle from the first one you see, and use it on the only Shade Turret in the mission. For a much easier time, hit the Turret with 1 Grenade of any type, then finish it off with the Focus Rifle. Minimum 4 playthroughs for this one Assault Op.
C-1b
Shooting Range
Kill 50 Covenant using Rifles
Very Easy--Medium. You start with a Rifle, and there are lots of easy covenant targets through the mission. You could even kill your teammates for more Rifle ammo. It's a really short mission also, so repeats quickly.
C-1c
Plasma Burn
Kill 40 Covenant with Plasma Grenades
Medium--Slow. This is an annoying Assault Op because you have to rely on grenade drops from Covenant since there are only 3 Plasma Grenades to pick up in the mission, over halfway through it on the north-west side of the main path. I discovered though that if you kill Elite Minors with grenade hits, they seem to more often drop plasmas, which you can then promptly hit some Grunts or Jackals with. Also, Elite Majors(red) always drop a Plasma. Quite luck based, it will take several playthroughs minimum, up to 10+ playthroughs.
C-2
C-2a
Explosive Apparation
Destroy 5 Ghosts using Frag Grenades
Normal--Medium. There are two Ghosts that appear during this mission, as part of the 3rd or 4th wave. Just make sure to have a Frag Grenade do the final damage to them, and you're good. You could always use a Plasma first then a Frag to make it easier. Minimum 3 playthroughs since there are only 2 Ghosts each time. One comes from the south-west, and one from the north. I highly recommend picking up the Speed Armor Ability right near where you start. Much better than what you start with. I also recommend the damage boost upgrade. Ghosts only take one Frag then.
C-2b
Moving Target
Kill 40 Drones with an Assault Rifle
Very Easy--Normal. There are a number of Drones that appear from the two holes several times during the mission. There are at least 20+ per playthrough. There are at least two Assault Rifles in the mission for pickups, one is to the far east along the path, and another is to the far west near the boxes. I highly recommend picking up the Speed Armor Ability right near where you start. Much better than what you start with. Recommended to use damage boost upgrade.
C-2c
Beam of Light
Kill 80 Covenant with a Focus Rifle
Very Easy--Normal. There are lots of Grunts and Elites in this mission. If you've already got your Assault Rifle challenge, then you can target the Drones also for more Covenant kills. I'd say you can get at least 30+ Covenant kills in one playthrough with the Focus Rifle. There are 3 Focus Rifle Pickups. One a little to the north next to some random clutter, one a little to the south just to the left of a big rock, and one more to the far west near the Assault Rifle. I highly recommend picking up the Speed Armor Ability right near where you start. Much better than what you start with. Recommended to use damage boost upgrade.
Explosive Apparation
Destroy 5 Ghosts using Frag Grenades
Normal--Medium. There are two Ghosts that appear during this mission, as part of the 3rd or 4th wave. Just make sure to have a Frag Grenade do the final damage to them, and you're good. You could always use a Plasma first then a Frag to make it easier. Minimum 3 playthroughs since there are only 2 Ghosts each time. One comes from the south-west, and one from the north. I highly recommend picking up the Speed Armor Ability right near where you start. Much better than what you start with. I also recommend the damage boost upgrade. Ghosts only take one Frag then.
C-2b
Moving Target
Kill 40 Drones with an Assault Rifle
Very Easy--Normal. There are a number of Drones that appear from the two holes several times during the mission. There are at least 20+ per playthrough. There are at least two Assault Rifles in the mission for pickups, one is to the far east along the path, and another is to the far west near the boxes. I highly recommend picking up the Speed Armor Ability right near where you start. Much better than what you start with. Recommended to use damage boost upgrade.
C-2c
Beam of Light
Kill 80 Covenant with a Focus Rifle
Very Easy--Normal. There are lots of Grunts and Elites in this mission. If you've already got your Assault Rifle challenge, then you can target the Drones also for more Covenant kills. I'd say you can get at least 30+ Covenant kills in one playthrough with the Focus Rifle. There are 3 Focus Rifle Pickups. One a little to the north next to some random clutter, one a little to the south just to the left of a big rock, and one more to the far west near the Assault Rifle. I highly recommend picking up the Speed Armor Ability right near where you start. Much better than what you start with. Recommended to use damage boost upgrade.
C-3
C-3a
A New Sheriff in Town
Kill 20 Elite Minors with Pistols
Medium--Fast. I verified that you can use the Magnum for these Elite Minors as well as the Elite Majors. *Chucklestyle discovered that the Needler counts as a pistol!--useful for saving all your Magnum for the Elite Majors!* *Special credit to Prestd for discovering a wonderful trick to get endless enemies to spawn quickly in this mission!!* "To get the enemies on mission C-3 to constantly spawn, you need to destroy the first 4 wraiths and then run to the end of the level, enemies including the Elite Majors will come pouring through the light wall." There is a Speed Armor Ability up the right side of the map, and you can use the Grenades scattered through the mission for the Wraiths. 2 Grenades for each AA Wraith, and 3-4 Grenades for each regular Wraith.
C-3b
Armed Ambush
Destroy 10 Wraiths with a Machine Gun Turret
Very Easy--Fast. There are quite a few Machine Gun Turrets scattered through the map. Combine this with the Speed Armor Ability, and you can just run from turret to turret destroying all the Wraiths quickly. Will take a couple playthroughs.
C-3c
Dirty Davis
Kill 20 Elite Majors using a Magnum
Medium--Medium. Thanks to Prestd, there is a great trick to get more Elite Majors to spawn! "To get the enemies on mission C-3 to constantly spawn, you need to destroy the first 4 wraiths and then run to the end of the level, enemies including the Elite Majors will come pouring through the light wall." There are also approximately 4-5 Elite Majors that will rush you once you've advanced about halfway up the map. I recommend using a Plasma overcharge to take down their shields, then a quick Magnum shot. Otherwise, it takes at least 5-6 Magnum shots to take them out. Don't forget to use the Speed Armor Ability, and also grab Grenades to help with the Wraiths.
A New Sheriff in Town
Kill 20 Elite Minors with Pistols
Medium--Fast. I verified that you can use the Magnum for these Elite Minors as well as the Elite Majors. *Chucklestyle discovered that the Needler counts as a pistol!--useful for saving all your Magnum for the Elite Majors!* *Special credit to Prestd for discovering a wonderful trick to get endless enemies to spawn quickly in this mission!!* "To get the enemies on mission C-3 to constantly spawn, you need to destroy the first 4 wraiths and then run to the end of the level, enemies including the Elite Majors will come pouring through the light wall." There is a Speed Armor Ability up the right side of the map, and you can use the Grenades scattered through the mission for the Wraiths. 2 Grenades for each AA Wraith, and 3-4 Grenades for each regular Wraith.
C-3b
Armed Ambush
Destroy 10 Wraiths with a Machine Gun Turret
Very Easy--Fast. There are quite a few Machine Gun Turrets scattered through the map. Combine this with the Speed Armor Ability, and you can just run from turret to turret destroying all the Wraiths quickly. Will take a couple playthroughs.
C-3c
Dirty Davis
Kill 20 Elite Majors using a Magnum
Medium--Medium. Thanks to Prestd, there is a great trick to get more Elite Majors to spawn! "To get the enemies on mission C-3 to constantly spawn, you need to destroy the first 4 wraiths and then run to the end of the level, enemies including the Elite Majors will come pouring through the light wall." There are also approximately 4-5 Elite Majors that will rush you once you've advanced about halfway up the map. I recommend using a Plasma overcharge to take down their shields, then a quick Magnum shot. Otherwise, it takes at least 5-6 Magnum shots to take them out. Don't forget to use the Speed Armor Ability, and also grab Grenades to help with the Wraiths.
C-4
C-4a
Razorback
Kill 10 Elite Majors with a Needler
Very Easy--Medium. There are 4-5 Elite Majors in this level, and they go down very quickly with a Needler. Combine and finish this Assault Op with one of the other two Assault Ops before focusing on the Stealth Elites. You can easily get more Needler ammo from the Jackals in this level, or the ammo crates.
C-4b
Guiding Light
Kill 20 Stealth Elites with a Focus Rifle
Very Easy--Fast. Once you have finished with the Elite Majors, you can start the level, kill the first two Stealth Elites, then Focus Rifle one of the explosive glowing objects and kill yourself. Reload the starting checkpoint, and repeat 10 times very quickly to get this Assault Op.
C-4c
Iron Fist
Kill 20 Stealth Elites with Melee Attacks
Very Easy--Fast. Once you have finished with the Elite Majors, you can start the level, kill the first two Stealth Elites, then Focus Rifle one of the explosive glowing objects and kill yourself. Reload the starting checkpoint, and repeat 10 times very quickly to get this Assault Op.
Razorback
Kill 10 Elite Majors with a Needler
Very Easy--Medium. There are 4-5 Elite Majors in this level, and they go down very quickly with a Needler. Combine and finish this Assault Op with one of the other two Assault Ops before focusing on the Stealth Elites. You can easily get more Needler ammo from the Jackals in this level, or the ammo crates.
C-4b
Guiding Light
Kill 20 Stealth Elites with a Focus Rifle
Very Easy--Fast. Once you have finished with the Elite Majors, you can start the level, kill the first two Stealth Elites, then Focus Rifle one of the explosive glowing objects and kill yourself. Reload the starting checkpoint, and repeat 10 times very quickly to get this Assault Op.
C-4c
Iron Fist
Kill 20 Stealth Elites with Melee Attacks
Very Easy--Fast. Once you have finished with the Elite Majors, you can start the level, kill the first two Stealth Elites, then Focus Rifle one of the explosive glowing objects and kill yourself. Reload the starting checkpoint, and repeat 10 times very quickly to get this Assault Op.
C-5
C-5a
Turn Off Their Lights
Kill 10 Elite Majors with a Focus Rifle
Very Easy--Very Fast. Found a better way. Save your Focus Rifle(pickup near the plasmas), use the damage upgrade. That way it takes far less to kill the Elite Majors, and you can pick up their ammo. Elite majors start rushing you when the countdown reaches 1:26 left. The Focus Rifle takes them down very quickly, and I was able to get all 10 in one go. Don't forget to run away from the action if your shields are down!
C-5b
Brutal Burnout
Kill 5 Brute Chieftains with a Shade Turret
Very Easy--Very Fast. To get this the fastest, simply run around at the start and kill the first 3 Grunt Minors, then run to one of the Shade Turrets and kill the Brute Chieftain who just spawned. Die, rinse, and repeat 4 more times.
C-5c
Special Delivery
Kill 50 Drones with Plasma Grenades
Very Hard--Very Slow. Extremely annoying, unless someone's figured out a trick for this. You have to stand far enough away so that your Plasmas land on the ground underneath where the Drones will be flying and shooting at the engineer. If you do it right, the blast radius will get some of the Drones at the same time. This will take many restarts or playthroughs. Figure on 6+ replays. There are approximately 10 Drones in 2 waves, and there are 3 Plasma Grenades to the left of where you start. Also, the Brute Chieftain drops another Plasma, and sometimes Grunts will drop Plasmas also. How I finished grinding mine out was this way: immediately as it starts, I went right, shotgunned the two Grunts, activated my speed boost, ran left and shotgunned the 3rd grunt. Then, Shotgunned the Brute Chieftain while picking up the other Plasmas, and grabbing the Plasma the Brute drops. From here, I positioned myself a little below the left lower gun cover near where the engineer works, and held the "LT" down so I could position my Plasmas exactly where I wanted. I found the best spot was just a little bit off center to the right, just above the engineer and still in the area behind the gun cover barricades. I also found that throwing the Plasmas when the Drones were not over that spot was best, as they usually flew over it just in time to get blown up. I managed to get a quad-kill with one Plasma this way, although that was very rare.
Turn Off Their Lights
Kill 10 Elite Majors with a Focus Rifle
Very Easy--Very Fast. Found a better way. Save your Focus Rifle(pickup near the plasmas), use the damage upgrade. That way it takes far less to kill the Elite Majors, and you can pick up their ammo. Elite majors start rushing you when the countdown reaches 1:26 left. The Focus Rifle takes them down very quickly, and I was able to get all 10 in one go. Don't forget to run away from the action if your shields are down!
C-5b
Brutal Burnout
Kill 5 Brute Chieftains with a Shade Turret
Very Easy--Very Fast. To get this the fastest, simply run around at the start and kill the first 3 Grunt Minors, then run to one of the Shade Turrets and kill the Brute Chieftain who just spawned. Die, rinse, and repeat 4 more times.
C-5c
Special Delivery
Kill 50 Drones with Plasma Grenades
Very Hard--Very Slow. Extremely annoying, unless someone's figured out a trick for this. You have to stand far enough away so that your Plasmas land on the ground underneath where the Drones will be flying and shooting at the engineer. If you do it right, the blast radius will get some of the Drones at the same time. This will take many restarts or playthroughs. Figure on 6+ replays. There are approximately 10 Drones in 2 waves, and there are 3 Plasma Grenades to the left of where you start. Also, the Brute Chieftain drops another Plasma, and sometimes Grunts will drop Plasmas also. How I finished grinding mine out was this way: immediately as it starts, I went right, shotgunned the two Grunts, activated my speed boost, ran left and shotgunned the 3rd grunt. Then, Shotgunned the Brute Chieftain while picking up the other Plasmas, and grabbing the Plasma the Brute drops. From here, I positioned myself a little below the left lower gun cover near where the engineer works, and held the "LT" down so I could position my Plasmas exactly where I wanted. I found the best spot was just a little bit off center to the right, just above the engineer and still in the area behind the gun cover barricades. I also found that throwing the Plasmas when the Drones were not over that spot was best, as they usually flew over it just in time to get blown up. I managed to get a quad-kill with one Plasma this way, although that was very rare.
D-1
D-1a
All in a Day's Work
Kill 20 Grunt Minors
Very Easy--Very Fast. There can be literally hundreds of Grunts on this mission.. they will continually spawn out of the bottom left barrier and spawn faster as the countdown goes lower. Use your favorite weapon, and get this fast!
D-1b
Death From Above
Kill 20 Jump-pack Brutes with a Brute Shot
Very Easy--Fast. Simplest way to do this--wait on the starting platform before destroying the first barrier. Brutes will continually respawn, and you can just camp their landing sites. 2 hits with the Brute Shot will take them out, and they drop more ammo. Figure on one Brute every 7+ seconds, and you're done!
D-1c
Premature Detonation
Kill 40 Suicide Grunts with a Focus Rifle
Medium--Normal. This one is slightly tricky. Elite Majors only start spawning when the countdown reaches about 1 minute. At this point, Covenant start pouring through the south-west barrier rapidly, including Grunt Minors, Suicide Grunts, Elite Majors mainly, and some remaining Elite Minors. I recommend taking the Overshield Armor Ability for this mission(I took the Spartan Laser for the doors also), camp the barrier, and when the Elite Majors start spawning, activate
your Overshield, swoop in, grab a Focus Rifle, then stand to one side and just continually fire the beam across the entrance. Elite Majors will charge you if you are close enough, and they'll simply drop more Focus Rifle ammo in front of you to pick up. I died quite a few times trying this, but finally was getting quite successful. If you want to finish the mission, make sure to start heading upwards with at least 10 seconds left assuming you already destroyed the armory door. You can rack up amazing points this way too. When I finally finished one of the missions I ended up with the 6th place overall score on the public leaderboards doing it this way!
All in a Day's Work
Kill 20 Grunt Minors
Very Easy--Very Fast. There can be literally hundreds of Grunts on this mission.. they will continually spawn out of the bottom left barrier and spawn faster as the countdown goes lower. Use your favorite weapon, and get this fast!
D-1b
Death From Above
Kill 20 Jump-pack Brutes with a Brute Shot
Very Easy--Fast. Simplest way to do this--wait on the starting platform before destroying the first barrier. Brutes will continually respawn, and you can just camp their landing sites. 2 hits with the Brute Shot will take them out, and they drop more ammo. Figure on one Brute every 7+ seconds, and you're done!
D-1c
Premature Detonation
Kill 40 Suicide Grunts with a Focus Rifle
Medium--Normal. This one is slightly tricky. Elite Majors only start spawning when the countdown reaches about 1 minute. At this point, Covenant start pouring through the south-west barrier rapidly, including Grunt Minors, Suicide Grunts, Elite Majors mainly, and some remaining Elite Minors. I recommend taking the Overshield Armor Ability for this mission(I took the Spartan Laser for the doors also), camp the barrier, and when the Elite Majors start spawning, activate
your Overshield, swoop in, grab a Focus Rifle, then stand to one side and just continually fire the beam across the entrance. Elite Majors will charge you if you are close enough, and they'll simply drop more Focus Rifle ammo in front of you to pick up. I died quite a few times trying this, but finally was getting quite successful. If you want to finish the mission, make sure to start heading upwards with at least 10 seconds left assuming you already destroyed the armory door. You can rack up amazing points this way too. When I finally finished one of the missions I ended up with the 6th place overall score on the public leaderboards doing it this way!
D-2
D-2a
Who's Laughing Now!?
Kill 10 Jackals with an Assault Rifle
Very Easy--Very Fast. There is an Assault Rifle box straight ahead from where you spawn, against the south side of the rock wall that divides the two northern paths. There is also at least one more AR ammo box further through the mission. And, you just need to point at Jackals and pull the trigger. AR's take care of Jackals really fast. You can easily get 10 in one playthrough.
D-2b
Grapple Hook
Kill 20 Jump-pack Brutes with a Needler
Easy--Medium. The Jump-pack Brutes reinforce the Covenant attacks on the 3 outposts you need to protect and liberate. There are 2 Brutes at each outpost that 'drop' in, so you can get a max of 6 per playthrough. There are lots of Needler ammo pickups you can get from dead Jackals so not a problem, and Brutes go down quickly to Needler ammo.
D-2c
Anvil
Kill 5 Brute Chieftains with a Brute Shot
Easy--Medium. There is only one Chieftain per playthrough, and he spawns at the second outpost; so maybe play up to where he is, then die after taking out the Brutes and repeat making this not quite so slow. Just remember to use the Brute Shot on him, and collect more ammo from the Jump-pack Brutes.
Who's Laughing Now!?
Kill 10 Jackals with an Assault Rifle
Very Easy--Very Fast. There is an Assault Rifle box straight ahead from where you spawn, against the south side of the rock wall that divides the two northern paths. There is also at least one more AR ammo box further through the mission. And, you just need to point at Jackals and pull the trigger. AR's take care of Jackals really fast. You can easily get 10 in one playthrough.
D-2b
Grapple Hook
Kill 20 Jump-pack Brutes with a Needler
Easy--Medium. The Jump-pack Brutes reinforce the Covenant attacks on the 3 outposts you need to protect and liberate. There are 2 Brutes at each outpost that 'drop' in, so you can get a max of 6 per playthrough. There are lots of Needler ammo pickups you can get from dead Jackals so not a problem, and Brutes go down quickly to Needler ammo.
D-2c
Anvil
Kill 5 Brute Chieftains with a Brute Shot
Easy--Medium. There is only one Chieftain per playthrough, and he spawns at the second outpost; so maybe play up to where he is, then die after taking out the Brutes and repeat making this not quite so slow. Just remember to use the Brute Shot on him, and collect more ammo from the Jump-pack Brutes.
D-3
D-3a
Bear Hug
Destroy 10 Wraiths with a Grizzly Tank
Very Easy--Fast. Most of the Wraiths are at the beginning of the mission. There are at least 5 at the start, and they are very easy to destroy with a Grizzly Tank--one shot fires two barrels and takes out a Wraith. Repeat the beginning twice, and you've got this Assault Op.
D-3b
Haunting
Kill 20 Grunt Minors with a Ghost
Very Easy--Fast. This can go even faster if you take the damage boost upgrade on the loadout screen. I recommend combining with the SMG Assault Op. You can easily get into a Ghost by using your default Decoy Armor Ability to distract the Ghost, running up, and pressing "X". There is a Ghost just after the first 5 Wraiths, right behind the first Shade Turret. There is also another you could hijack just a bit further north. From then on, especially with a damage boost, you can wipe everything out. You should be able to get a minimum of 10 Grunt Minors per playthrough.
D-3c
Drive By
Destroy 20 Wraiths with SMGs
Normal--Fast. The way I did this was I first destroyed my companion tanks at the start so they wouldn't shoot the Wraiths, then I used the secondary gun on the Grizzly to damage the Wraiths far enough to get the Elites to jump out. I proceeded to run over the Elites with my Grizzly, then jumped out and SMG'd the Wraiths. That's an easy way to get 5 right at the start, and there are at least 2 more during the mission that you could use your Grizzly or a Ghost to damage and repeat with the SMG. Minimum of 3 playthroughs.
Bear Hug
Destroy 10 Wraiths with a Grizzly Tank
Very Easy--Fast. Most of the Wraiths are at the beginning of the mission. There are at least 5 at the start, and they are very easy to destroy with a Grizzly Tank--one shot fires two barrels and takes out a Wraith. Repeat the beginning twice, and you've got this Assault Op.
D-3b
Haunting
Kill 20 Grunt Minors with a Ghost
Very Easy--Fast. This can go even faster if you take the damage boost upgrade on the loadout screen. I recommend combining with the SMG Assault Op. You can easily get into a Ghost by using your default Decoy Armor Ability to distract the Ghost, running up, and pressing "X". There is a Ghost just after the first 5 Wraiths, right behind the first Shade Turret. There is also another you could hijack just a bit further north. From then on, especially with a damage boost, you can wipe everything out. You should be able to get a minimum of 10 Grunt Minors per playthrough.
D-3c
Drive By
Destroy 20 Wraiths with SMGs
Normal--Fast. The way I did this was I first destroyed my companion tanks at the start so they wouldn't shoot the Wraiths, then I used the secondary gun on the Grizzly to damage the Wraiths far enough to get the Elites to jump out. I proceeded to run over the Elites with my Grizzly, then jumped out and SMG'd the Wraiths. That's an easy way to get 5 right at the start, and there are at least 2 more during the mission that you could use your Grizzly or a Ghost to damage and repeat with the SMG. Minimum of 3 playthroughs.
D-4
D-4a
Molten Rain
Kill 10 Elite Majors with a Plasma Repeater
Easy--Fast. There are only about 5 Elite Majors that spawn in this mission. They all spawn as part of the Covenant that are chasing the Elephant across the bridge. Make sure to pick up a Plasma Repeater, and target the Red Elite Majors. The Blue Elites drop Plasma Repeaters just in case you didn't remember...
D-4b
Punctured Phalanx
Kill 20 Jackals with SMGs
Hard--Very Slow. The only Jackals in this mission spawn at the very end as the Elephant is going through the barrier to complete the mission. They spawn with groups of Suicide Grunts making it very hard to actually take out the Jackals before they get blown up. This will take multiple playthroughs, possibly up to 10 or more as you can hardly guarantee any Jackal kills. Using the Shock Armor Ability to freeze the Jackals and Grunts might help a little. I found at least 2 SMG pickups through the mission.
D-4c
Blast of Glory
Kill 100 Suicide Grunts with a Plasma Pistol
Very Easy--Slow. You start with a Plasma Pistol, and there are loads of Suicide Grunts to shoot at. I recommend the damage boost upgrade. Also remember that Drones also drop Plasma Pistols as you will run out of ammo. There are pretty much Suicide Grunts everywhere in this mission. It will take a couple playthroughs at least, but goes fairly quickly considering you have to get 100 kills!
Molten Rain
Kill 10 Elite Majors with a Plasma Repeater
Easy--Fast. There are only about 5 Elite Majors that spawn in this mission. They all spawn as part of the Covenant that are chasing the Elephant across the bridge. Make sure to pick up a Plasma Repeater, and target the Red Elite Majors. The Blue Elites drop Plasma Repeaters just in case you didn't remember...
D-4b
Punctured Phalanx
Kill 20 Jackals with SMGs
Hard--Very Slow. The only Jackals in this mission spawn at the very end as the Elephant is going through the barrier to complete the mission. They spawn with groups of Suicide Grunts making it very hard to actually take out the Jackals before they get blown up. This will take multiple playthroughs, possibly up to 10 or more as you can hardly guarantee any Jackal kills. Using the Shock Armor Ability to freeze the Jackals and Grunts might help a little. I found at least 2 SMG pickups through the mission.
D-4c
Blast of Glory
Kill 100 Suicide Grunts with a Plasma Pistol
Very Easy--Slow. You start with a Plasma Pistol, and there are loads of Suicide Grunts to shoot at. I recommend the damage boost upgrade. Also remember that Drones also drop Plasma Pistols as you will run out of ammo. There are pretty much Suicide Grunts everywhere in this mission. It will take a couple playthroughs at least, but goes fairly quickly considering you have to get 100 kills!
D-5
D-5a
Is This Yours?
Kill 20 Suicide Grunts with Incendiary Grenades
Very Easy--Fast. Suicide Grunts will only come at you from the top left barrier near the start of the mission unfortunately, so you'll need to capitalize on the Suicide Grunts here. Once again, it's very helpful to throw Incendiary Grenades right next to the barrier to spawning Covenant automatically die in the flames. You start with 3 Incendiary Grenades, and there are 3 more in a grenade chest straight south of where you start, opposite the Elephant that was unloading the troops. You could get up to 6 or more each time through using all the grenades.
D-5b
Border Patrol
Kill 100 Covenant with a Machine Gun Turret
Very Easy--Very Fast. This is great fun, you have a MG Turret near the top, and one near the bottom. Just get on the gun and blast away! You should be able to do this in about 2 playthroughs.
D-5c
Hammer to a Gunfight
Kill 10 Brute Chieftains with a Magnum
Very Easy--Slow. There are only two Brute Chieftains per playthrough, and they both come from the north-west when defending the second group of escaping survivors. Chieftains go down easily, although I did have a damage upgrade equipped. With the damage upgrade Chieftains only took about 4 Magnum shots each. Once you kill the second Chieftain, the mission is almost over... and to get the next you you have to replay the whole mission back up to that point. Update!! I just got 3 Chieftains on my re-run of this achievement to unglitch it. I got two up the left side, and one more came from the bottom right near the second drop-ship!
Is This Yours?
Kill 20 Suicide Grunts with Incendiary Grenades
Very Easy--Fast. Suicide Grunts will only come at you from the top left barrier near the start of the mission unfortunately, so you'll need to capitalize on the Suicide Grunts here. Once again, it's very helpful to throw Incendiary Grenades right next to the barrier to spawning Covenant automatically die in the flames. You start with 3 Incendiary Grenades, and there are 3 more in a grenade chest straight south of where you start, opposite the Elephant that was unloading the troops. You could get up to 6 or more each time through using all the grenades.
D-5b
Border Patrol
Kill 100 Covenant with a Machine Gun Turret
Very Easy--Very Fast. This is great fun, you have a MG Turret near the top, and one near the bottom. Just get on the gun and blast away! You should be able to do this in about 2 playthroughs.
D-5c
Hammer to a Gunfight
Kill 10 Brute Chieftains with a Magnum
Very Easy--Slow. There are only two Brute Chieftains per playthrough, and they both come from the north-west when defending the second group of escaping survivors. Chieftains go down easily, although I did have a damage upgrade equipped. With the damage upgrade Chieftains only took about 4 Magnum shots each. Once you kill the second Chieftain, the mission is almost over... and to get the next you you have to replay the whole mission back up to that point. Update!! I just got 3 Chieftains on my re-run of this achievement to unglitch it. I got two up the left side, and one more came from the bottom right near the second drop-ship!
E-1
E-1a
Blind Spot
Kill 10 Drones with a Wraith
Easy--Medium. There is only one Wraith in the mission, about halfway through. You need to either steal it with Invisibility on or just hijack it with Invisibility on. The only Drones you can get with the Wraith fly up out of the center hole in the map. -- Credit to Chucklestyle: you should be able to bait towards the wraith a group of 6 drones that fly out of the center hole, and if you avoid the Drones near mission start, you can get some of them as well. Should only take two runs through!
E-1b
Let It Rain!
Kill 20 Stealth Elites with SMGs
Easy--Medium. There are a lot of Stealth Elites in this mission, and you start with SMGs. I didn't find any other SMG ammo through the mission though, and I recommend you use the damage upgrade on the loadout screen. There are 2 Stealth Elites up the left side at the start, 2 more up the middle path, 2 more where the Wraith is(check the sides of the Wraith area), and at least 2 more at the final area. Should take at least 3 playthroughs.
E-1c
Come out of the Shade
Destroy 10 Stealth Elites with a Shade Turret
Hard--Slow. This one is very annoying, as you have to lead the Stealth Elites up to the Shade Turrets, and then shoot them before they run away. I had success getting at least one Stealth Elite each time using the Shade Turret just south of the Wraith, and at least two more Stealth Elites in the final area, using the closest Shade Turret. You can sit in that final Shade Turret and snipe the red squares off the screen. Just go by the map, and aim and shoot in the direction, and you should see your score go up when you get a hit. -- Credit to Chucklestyle, if this works as well as he said, it's a fantastic find! Can anyone confirm? "You can bait the stealths and as long as you're not facing them they should follow you all around the level. I would head left from start and let the first one kill my team, then lure him up to the first turret. Make your way up to the 2nd turret, jump in it and waste everything with the turret, then you can lure at least a few more to this turret.
Blind Spot
Kill 10 Drones with a Wraith
Easy--Medium. There is only one Wraith in the mission, about halfway through. You need to either steal it with Invisibility on or just hijack it with Invisibility on. The only Drones you can get with the Wraith fly up out of the center hole in the map. -- Credit to Chucklestyle: you should be able to bait towards the wraith a group of 6 drones that fly out of the center hole, and if you avoid the Drones near mission start, you can get some of them as well. Should only take two runs through!
E-1b
Let It Rain!
Kill 20 Stealth Elites with SMGs
Easy--Medium. There are a lot of Stealth Elites in this mission, and you start with SMGs. I didn't find any other SMG ammo through the mission though, and I recommend you use the damage upgrade on the loadout screen. There are 2 Stealth Elites up the left side at the start, 2 more up the middle path, 2 more where the Wraith is(check the sides of the Wraith area), and at least 2 more at the final area. Should take at least 3 playthroughs.
E-1c
Come out of the Shade
Destroy 10 Stealth Elites with a Shade Turret
Hard--Slow. This one is very annoying, as you have to lead the Stealth Elites up to the Shade Turrets, and then shoot them before they run away. I had success getting at least one Stealth Elite each time using the Shade Turret just south of the Wraith, and at least two more Stealth Elites in the final area, using the closest Shade Turret. You can sit in that final Shade Turret and snipe the red squares off the screen. Just go by the map, and aim and shoot in the direction, and you should see your score go up when you get a hit. -- Credit to Chucklestyle, if this works as well as he said, it's a fantastic find! Can anyone confirm? "You can bait the stealths and as long as you're not facing them they should follow you all around the level. I would head left from start and let the first one kill my team, then lure him up to the first turret. Make your way up to the 2nd turret, jump in it and waste everything with the turret, then you can lure at least a few more to this turret.
E-2
E-2a
Light at the End of the Tunnel
Kill 20 Grunt Majors with a Focus Rifle
Very Easy--Fast. Work on the Elite Majors Assault Op first, the others secondary. You start with a Focus Rifle, and there is unlimited ammo for it in a cache on the right side of the pathway. I recommend using the bonus damage upgrade to get the fastest possible kills. There are quite a few white Grunt Majors, and you should be able to get this in one playthrough.
E-2b
Scorched Earth
Kill 10 Elite Majors using Incendiary Grenades
Easy--Slow. Excellent improvement suggested by qG Lecca!! : 'Pick up the Stun ability next to the plasma repeater locker on the left a bit down from where you start. Stun them, aim your grenade on them and voila. 3 kills every time.'
The Elite Majors only show up close to the end of the mission, and you have only 3 Incendiary Grenades to start with. I wasn't able to find any other Incendiary Grenades either unfortunately. If you're very accurate, you could probably do this in 4 playthroughs.
E-2c
Fight Plasma with Plasma
Kill 100 Grunts with a Plasma Pistol
Very Easy--Slow. Work on the Elite Majors Assault Op first, the others secondary. The first Grunts will drop Plasma Pistols, and you can just keep killing grunts from then on easily. It will take a couple playthroughs at least though. I highly recommend the damage boost upgrade.
Light at the End of the Tunnel
Kill 20 Grunt Majors with a Focus Rifle
Very Easy--Fast. Work on the Elite Majors Assault Op first, the others secondary. You start with a Focus Rifle, and there is unlimited ammo for it in a cache on the right side of the pathway. I recommend using the bonus damage upgrade to get the fastest possible kills. There are quite a few white Grunt Majors, and you should be able to get this in one playthrough.
E-2b
Scorched Earth
Kill 10 Elite Majors using Incendiary Grenades
Easy--Slow. Excellent improvement suggested by qG Lecca!! : 'Pick up the Stun ability next to the plasma repeater locker on the left a bit down from where you start. Stun them, aim your grenade on them and voila. 3 kills every time.'
The Elite Majors only show up close to the end of the mission, and you have only 3 Incendiary Grenades to start with. I wasn't able to find any other Incendiary Grenades either unfortunately. If you're very accurate, you could probably do this in 4 playthroughs.
E-2c
Fight Plasma with Plasma
Kill 100 Grunts with a Plasma Pistol
Very Easy--Slow. Work on the Elite Majors Assault Op first, the others secondary. The first Grunts will drop Plasma Pistols, and you can just keep killing grunts from then on easily. It will take a couple playthroughs at least though. I highly recommend the damage boost upgrade.
E-3
E-3a
All Charged Up
Kill 30 Jackals with a Plasma Pistol
Easy--Slow. Go north, stealth, kill a grunt, take his Plasma Pistol, and then proceed to use it against all the Jackals you can find. There will be quite a few, I'm guessing at least 20 Jackals per playthrough, however this just takes a long time to do.
E-3b
Dynamite Fishing
Kill 50 Grunt Majors with Grenades
Easy--Slow. You start with some grenades, and just run around picking up grenades and whenever you see a white Grunt Major use a grenade on him. You'll get this eventually around when you get the Jackal Assault Op.
E-3c
Stick Around!
Kill 100 Covenant with a Needler
Easy--Slow. Kill a Jackal, take his Needler, then Needle every enemy that isn't a Grunt Major or a Jackal, as you can work on all 3 Assault Ops at one time.
All Charged Up
Kill 30 Jackals with a Plasma Pistol
Easy--Slow. Go north, stealth, kill a grunt, take his Plasma Pistol, and then proceed to use it against all the Jackals you can find. There will be quite a few, I'm guessing at least 20 Jackals per playthrough, however this just takes a long time to do.
E-3b
Dynamite Fishing
Kill 50 Grunt Majors with Grenades
Easy--Slow. You start with some grenades, and just run around picking up grenades and whenever you see a white Grunt Major use a grenade on him. You'll get this eventually around when you get the Jackal Assault Op.
E-3c
Stick Around!
Kill 100 Covenant with a Needler
Easy--Slow. Kill a Jackal, take his Needler, then Needle every enemy that isn't a Grunt Major or a Jackal, as you can work on all 3 Assault Ops at one time.
E-4
E-4a
Ghost Blaster
Destroy 5 Ghosts using a Plasma Pistol
Very Easy--Fast. There is a very very easy way of doing this. You start the mission with a Plasma Pistol and there is a parked Ghost straight north from the start. Just run up there, and overcharge the Ghost 3 times, die, and repeat 5 more times!
E-4b
Plasma Transfusion
Destroy 10 Shade Turrets with a Ghost
Easy--Medium. There is a Ghost straight up from the start, and there are at least 3 Shade Turrets you can take out with your Ghost during the mission. Just repeat several times and you'll get this quickly.
E-4c
Road Warrior
Kill 50 Covenant with a Ghost
Very Easy--Fast. Take the Ghost from the beginning of the mission and just kill everything with it. Very easy. You probably won't get 50 in one playthrough, but 2 should do it! Just watch out for Wraith shots.
Ghost Blaster
Destroy 5 Ghosts using a Plasma Pistol
Very Easy--Fast. There is a very very easy way of doing this. You start the mission with a Plasma Pistol and there is a parked Ghost straight north from the start. Just run up there, and overcharge the Ghost 3 times, die, and repeat 5 more times!
E-4b
Plasma Transfusion
Destroy 10 Shade Turrets with a Ghost
Easy--Medium. There is a Ghost straight up from the start, and there are at least 3 Shade Turrets you can take out with your Ghost during the mission. Just repeat several times and you'll get this quickly.
E-4c
Road Warrior
Kill 50 Covenant with a Ghost
Very Easy--Fast. Take the Ghost from the beginning of the mission and just kill everything with it. Very easy. You probably won't get 50 in one playthrough, but 2 should do it! Just watch out for Wraith shots.
E-5
E-5a
Rodent Removal
Kill 10 Jackals
Very Easy--Very Fast. Do not worry about this one, you'll get it at the same time as you kill Jackals with Brute Shot.
E-5b
Exterminator
Kill 25 Elites with an Assault Rifle
Easy--Fast. There is an Assault Rifle crate on the left side of the area. There are about 8 Elites that come through the mission, so you'll have to replay it about 5 times assuming you get all the Elites with an Assault Rifle.
E-5c
Perosus Latrunculus Exterminatus
Kill 20 Jackals with a Brute Shot
Very Easy--Fast. If you want to do this one extra fast, simple start the mission, take out the Jackals facing you with the Brute Shot, and then die, and restart.
Rodent Removal
Kill 10 Jackals
Very Easy--Very Fast. Do not worry about this one, you'll get it at the same time as you kill Jackals with Brute Shot.
E-5b
Exterminator
Kill 25 Elites with an Assault Rifle
Easy--Fast. There is an Assault Rifle crate on the left side of the area. There are about 8 Elites that come through the mission, so you'll have to replay it about 5 times assuming you get all the Elites with an Assault Rifle.
E-5c
Perosus Latrunculus Exterminatus
Kill 20 Jackals with a Brute Shot
Very Easy--Fast. If you want to do this one extra fast, simple start the mission, take out the Jackals facing you with the Brute Shot, and then die, and restart.
F-1
F-1a
Ballistic Engineering
Destroy 5 Shade Turrets with a Magnum
Easy--Fast. I recommend the damage booster for this one. Use one grenade on the turrets, and then finish off with the Magnum. There are at least 4 Shade Turrets scattered around the area, and you could get this easily in two playthroughs. There is no more Magnum ammo though, so watch your supply.
F-1b
Plastered Purple
Kill 20 Elites with Frag Grenades
Normal--Slow. You start with 3 Frag Grenades, and that's it. You'll just need to be very accurate with the Elites, as I found the Frags missing often and the Elites also running away from them. Die and restart if this is your last Assault Op after you use your third Frag Grenade, and be careful you don't accidentally use your Frags instead of Plasmas!
F-1c
Carpet Bombing
Kill 60 Covenant with a Brute Shot
Very Easy--Fast. I recommend the damage booster so you can one-shot Brutes with the Brute Shot. Otherwise they are two shots. There happens to be unlimited Covenant and unlimited Brute Shot spawns in this mission. On the top left are of the map, where the Jump-pack Brute flies in, you can kill him and take his Brute Shot, and just keep killing Covenant and spawn killing the Brute for more ammo. Works great.
Ballistic Engineering
Destroy 5 Shade Turrets with a Magnum
Easy--Fast. I recommend the damage booster for this one. Use one grenade on the turrets, and then finish off with the Magnum. There are at least 4 Shade Turrets scattered around the area, and you could get this easily in two playthroughs. There is no more Magnum ammo though, so watch your supply.
F-1b
Plastered Purple
Kill 20 Elites with Frag Grenades
Normal--Slow. You start with 3 Frag Grenades, and that's it. You'll just need to be very accurate with the Elites, as I found the Frags missing often and the Elites also running away from them. Die and restart if this is your last Assault Op after you use your third Frag Grenade, and be careful you don't accidentally use your Frags instead of Plasmas!
F-1c
Carpet Bombing
Kill 60 Covenant with a Brute Shot
Very Easy--Fast. I recommend the damage booster so you can one-shot Brutes with the Brute Shot. Otherwise they are two shots. There happens to be unlimited Covenant and unlimited Brute Shot spawns in this mission. On the top left are of the map, where the Jump-pack Brute flies in, you can kill him and take his Brute Shot, and just keep killing Covenant and spawn killing the Brute for more ammo. Works great.
F-2
F-2a
Mauled to Death
Destroy 10 Ghosts with a Grizzly Tank
Very Easy--Medium. You start in a Grizzly! There are only about 3-4 ghosts per playthrough, and they are NO match for a Grizzly. Enjoy this mission. Just watch out for the Mega-turret shots as they can damage your Grizzly quite fast.
F-2b
Mine Field
Kill 20 Suicide Grunts with a Scorpion Tank
Easy--Slow. You start in a Grizzly! Jump out and get in the Scorpion just a bit farther up. There are not many Suicide Grunts in this mission, maybe a total of 8, and keeping the Scorpion tank alive can be challenging. Just be very careful about the Mega-Turret shots, Ghosts, and Wraiths and you should manage. It takes a while though. I highly recommend the damage boost upgrade to keep your Scorpion safer through offense! (updated starting tank thanks to | LUNCHTREY I )
F-2c
Beyond the Grave
Kill 60 Covenant with a Ghost
Easy--Medium. Quite fun. Head north until you see a Ghost, hijack it, and then melt everything with Plasma! Ghosts aren't invincible so use with care though, stay out of range, and do NOT get hit by the Mega-Turret shots.
Mauled to Death
Destroy 10 Ghosts with a Grizzly Tank
Very Easy--Medium. You start in a Grizzly! There are only about 3-4 ghosts per playthrough, and they are NO match for a Grizzly. Enjoy this mission. Just watch out for the Mega-turret shots as they can damage your Grizzly quite fast.
F-2b
Mine Field
Kill 20 Suicide Grunts with a Scorpion Tank
Easy--Slow. You start in a Grizzly! Jump out and get in the Scorpion just a bit farther up. There are not many Suicide Grunts in this mission, maybe a total of 8, and keeping the Scorpion tank alive can be challenging. Just be very careful about the Mega-Turret shots, Ghosts, and Wraiths and you should manage. It takes a while though. I highly recommend the damage boost upgrade to keep your Scorpion safer through offense! (updated starting tank thanks to | LUNCHTREY I )
F-2c
Beyond the Grave
Kill 60 Covenant with a Ghost
Easy--Medium. Quite fun. Head north until you see a Ghost, hijack it, and then melt everything with Plasma! Ghosts aren't invincible so use with care though, stay out of range, and do NOT get hit by the Mega-Turret shots.
F-3
F-3a
Voodoo Doll
Kill 10 Jackals with a Needler
Easy--Fast. You start with a Needler, and there are plenty of Jackals near the start. If necessary a second playthrough should easily get you this Assault Op.
F-3b
Puncture Burn
Kill 30 Grunts with a Plasma Repeater
Very Easy--Fast. You start with a Repeater--just use it on any Grunts you see, and you should have this one easily in two playthroughs. You could always restart after clearing out the first Grunts also.
F-3c
Explosive Arsenal
Kill 60 Elites with Frag Grenades
Hard--Very Slow. This is a stupid Assault Op. You start with 3 Frag Grenades, and there are no more. What I did was load up the mission, run straight for the first Elite ignoring all other Covenant, Frag him, if successful, run straight to the 2nd Elite who is further north and east, Frag him, if successful run to the last starting Elite who is at the far east barrier. As soon as I threw all 3 Frags and got my kills, I would restart the mission and repeat. It does count. Takes a minimum of 20 restarts, figure on closer to 40-50 restarts though because of grenade aiming and Elites moving.
Voodoo Doll
Kill 10 Jackals with a Needler
Easy--Fast. You start with a Needler, and there are plenty of Jackals near the start. If necessary a second playthrough should easily get you this Assault Op.
F-3b
Puncture Burn
Kill 30 Grunts with a Plasma Repeater
Very Easy--Fast. You start with a Repeater--just use it on any Grunts you see, and you should have this one easily in two playthroughs. You could always restart after clearing out the first Grunts also.
F-3c
Explosive Arsenal
Kill 60 Elites with Frag Grenades
Hard--Very Slow. This is a stupid Assault Op. You start with 3 Frag Grenades, and there are no more. What I did was load up the mission, run straight for the first Elite ignoring all other Covenant, Frag him, if successful, run straight to the 2nd Elite who is further north and east, Frag him, if successful run to the last starting Elite who is at the far east barrier. As soon as I threw all 3 Frags and got my kills, I would restart the mission and repeat. It does count. Takes a minimum of 20 restarts, figure on closer to 40-50 restarts though because of grenade aiming and Elites moving.
F-4
F-4a
Great Balls of Plasma
Kill 10 Elites with a Shade Turret
Easy--Very Fast. The trick for this is to stealth and take over the Shade Turret at the far west shield generator, and then just camp in it shooting everything that comes.
F-4b
Slugger
Kill 20 Stealth Elites with a Melee Attack
Easy--Fast. I highly recommend the damage upgrade, because then the Stealth Elites are only two melees. There are a lot of them, at least 10 per playthrough, so just go through and melee them all. Two playthroughs should easily do it.
F-4c
Bug Fixer
Kill 80 Drones with a Plasma Pistol
Normal--Medium. My estimate on the total number of Drones for one playthrough is close to 30. They spawn out of the holes next to each path, and usually more will spawn after you complete an objective and then repass an area that you previously cleared. The best place for Drone killing is the shield generator on the right side, as a stream of about 12 Drones attacks at that objective. Just run around the paths and 3-4 Drones will spawn at a time. Then complete some objectives, more will spawn, etc.
Great Balls of Plasma
Kill 10 Elites with a Shade Turret
Easy--Very Fast. The trick for this is to stealth and take over the Shade Turret at the far west shield generator, and then just camp in it shooting everything that comes.
F-4b
Slugger
Kill 20 Stealth Elites with a Melee Attack
Easy--Fast. I highly recommend the damage upgrade, because then the Stealth Elites are only two melees. There are a lot of them, at least 10 per playthrough, so just go through and melee them all. Two playthroughs should easily do it.
F-4c
Bug Fixer
Kill 80 Drones with a Plasma Pistol
Normal--Medium. My estimate on the total number of Drones for one playthrough is close to 30. They spawn out of the holes next to each path, and usually more will spawn after you complete an objective and then repass an area that you previously cleared. The best place for Drone killing is the shield generator on the right side, as a stream of about 12 Drones attacks at that objective. Just run around the paths and 3-4 Drones will spawn at a time. Then complete some objectives, more will spawn, etc.
F-5
F-5a
Rain of Pain
Kill 20 Elites with a SMG
Easy--Medium. Go for the Suicide Grunt Assault Op first! I highly recommend damage upgrade for this Assault Op. After finishing with the Suicide Grunts, go back to the start, gun the two Elite Majors down with your SMG, and immediately restart. Way faster than going through the mission!
F-5b
Return to Sender
Kill 20 Suicide Grunts with Plasma Grenades
Easy--Very Slow. Suicide Grunts are few and far between on this mission unfortunately. There might be a total of 5-6 per mission, so you will have to make multiple playthroughs. Fortunately there are LOTS of Plasma Grenades lying around. Take a Focus Rifle, unlimited ammo from the cache, and just gun down everything that isn't a Suicide Grunt.
F-5c
Laser Surgery
Kill 40 Elites with a Focus Rifle
Easy--Slow. Go for the Suicide Grunt Assault Op first! I highly recommend damage upgrade for this Assault Op. After finishing with the Suicide Grunts, go back to the start, run across the bridge, activate Speed Armor Ability as soon as you can, race to the Focus Rifle cache just on the left side of the big center hole, grab a Focus Rifle, gun down the two Elite Majors, and restart level. Repeat 20 times or fewer depending how many you got while going for Suicide Grunts. Way faster than going through the mission!
Rain of Pain
Kill 20 Elites with a SMG
Easy--Medium. Go for the Suicide Grunt Assault Op first! I highly recommend damage upgrade for this Assault Op. After finishing with the Suicide Grunts, go back to the start, gun the two Elite Majors down with your SMG, and immediately restart. Way faster than going through the mission!
F-5b
Return to Sender
Kill 20 Suicide Grunts with Plasma Grenades
Easy--Very Slow. Suicide Grunts are few and far between on this mission unfortunately. There might be a total of 5-6 per mission, so you will have to make multiple playthroughs. Fortunately there are LOTS of Plasma Grenades lying around. Take a Focus Rifle, unlimited ammo from the cache, and just gun down everything that isn't a Suicide Grunt.
F-5c
Laser Surgery
Kill 40 Elites with a Focus Rifle
Easy--Slow. Go for the Suicide Grunt Assault Op first! I highly recommend damage upgrade for this Assault Op. After finishing with the Suicide Grunts, go back to the start, run across the bridge, activate Speed Armor Ability as soon as you can, race to the Focus Rifle cache just on the left side of the big center hole, grab a Focus Rifle, gun down the two Elite Majors, and restart level. Repeat 20 times or fewer depending how many you got while going for Suicide Grunts. Way faster than going through the mission!
A-1a
Warm Up That Pitching Arm
Kill 3 Grunt Minors with Frag Grenades
Easy--Very Fast. You start with Frag Grenades and Grunt Minors are the first attackers. Just 'Lt' at them and you've got it.
A-1b
Rookie Target Practice
Kill 20 Elite Minors
Very Easy--Slow. This will make you replay the mission multiple times, as there are only 4 Elites in it.
A-1c
Sidearm Slaughter
Kill 50 Grunt Minors with a Magnum
Very Easy--Slow. Annother one that makes you have to replay it, combine this with the previous Assault Op. Switch to your one-hit-kill Magnum and have at it!
A-2a
A Shady Detonation
Destroy 2 Shade Turrets with Plasma Grenades
Very Easy--Very Fast. Remember, the Shade Turrets are the ones that the Grunts jump into to shoot at you. It takes 2 Plasmas to take one out, so I recommend using a Frag or other weapon first then your Plasma.
A-2b
Scorch Mark
Kill 20 Grunt Minors with a Plasma Pistol
Easy--Fast. This one goes quickly, with a few level repeats. Shoot the grunt right at the start with your pistol, grab his pistol, and 'headshot' the grunts from then on. Repeat until you get it. Combine this with the next Assault Op! Probably 3 playthroughs for this one.
A-2c
Taste Your Own Medicine!
Kill 40 Elite Minors with Plasma Repeaters
Very Easy--Slow. Almost the same as above, except kill the Elite right at the start, then use his gun on the rest. Alternatively, you could run past the first Elite to the weapons crate, grab a Repeater, and kill that Elite. If you kill him first, then you can get 5 Elites per playthrough, If you pick up the weapon first you can get 6. Combine with The previous Assault Op.
A-3a
Gung Ho!
Destroy 3 Shade Turrets with a Plasma Pistol
Easy--Fast. Shade Turrets take two Grenades to blow up, so use one Grenade then Plasma overcharge the turrets. You can grab a Plasma Pistol off the first Grunt. If you're fast, you can combine this with the score challenge, but not recommended. You can definitely combine this with the 40 Grunt kills to save time.
A-3b
Expert Target Practice
Kill 30 Elite Minors with an Assault Rifle
Very Easy--Slow. Keep your Assault Rifle, and keep replaying the level. I think you get about 7-8 Elites per playthrough, so it's not many repeats. I got this one last of the three.
A-3c
Sentry Post
Kill 40 Grunt Minors with a Shade Turret
Medium--Slow. Use your Armor Ability and run to each Shade Turret. You can start firing almost as soon as you're in it and it points, so rush to different turrets and target all the Grunts. You can also target grunts who are off-screen! There are a LOT of grunts in this level, so you should get this in about 3 playthroughs if you get them all each go. Combine with the Elite Minors Assault Op--jump out of the turret fast when you see an Elite.
A-4a
Stick To This!
Kill 5 Elite Minors with Plasma Grenades
Hard--Fast. For this one, jump into the Wraith, destroy the barrier, then proceed upwards on foot. You have the Speed Armor Ability so use it! There's one Elite close, and several more through the level. Try to get a sticky, otherwise they'll dodge. There are more plasmas near the start, go a little up, and on the right side where the Wraith tank won't fit, there are two grunts, two shields, and some plasmas. You can also find more plasmas through the level from dead enemies and some just south of the last AA Wraith. Combine with the next Assault Op.
A-4b
Burn Ward
Kill 30 Grunt Minors with a Plasma Repeater
Easy--Normal. You start with a Repeater. Like the last, use the Wraith to destroy the barrier, then proceed upwards on foot annihilating all Grunts with your Repeater. You can get more ammo for it from a weapons cache on the left side more than half-way through the level, and of course, dead Elites... combine with the previous Assault Op if you can.
A-4c
Wrath of the Wraith
Destroy 15 Wraiths with a Wraith
Very Easy--Fast. Jump in the Wraith, and go to town! This was fun, and there's really nothing to say, other than, make sure to keep dodging enemy wraith shots, and keep far enough away that their plasma gunner can't shoot. First time I played this level, I lost my Wraith. Last time I played the level, my Wraith ended with 75% health.
A-5a
Meatgrinder Mayhem
Kill 15 Grunt Minors with a Machine Gun Turret
Very Easy--Fast. The main turret you'll want to use is the one at the top of the Hornet landing pad. You can probably get all 15 Grunt Minors in one go. Remember though, the yellow ones are Grunt Minors, the white are Grunt Majors. If you don't get it all in one go at that turret, run around to the bottom turret, and go back and forth until you get it.
A-5b
Sting Like a Bee
Destroy 4 Wraiths with a Magnum
Very Hard--Slowest. There are 3 Wraiths that show up at the end of the mission. One Wraith shows up through the bottom barrier with one minute left, and two more come through the left and right barriers just after when the first countdown reaches zero. To destroy the Wraith with a Magnum though, you need to damage it first with something else down to about 3 bars or less. I recommend using a damage booster when going for this Assault Op. The best way to damage the Wraith is with Plasmas, they take it's health down very fast, and I believe two Plasmas take it's health down about 70-90%. The elites will jump out when it's at about 30% damage though and you can't tell how little health is left at that point because the health bar disappears. So, you could use Plasmas, sentry turrets work very well, or you could even hijack the Wraith and then get yourself shot up while watching the health bar. JUMP OUT before it gets destroyed though or you fail the mission! Either way you do it, Sentry Turrets and Grenades are the best, DO NOT USE the Magnum only, it will run out of ammo fast and I never found more Magnum ammo on the map. Even worse, there are only 3 Wraiths per playthrough and they are at the very end of the playthrough; so if you die, you have to restart and do the base defense all over again; and, there's a 25 second timer that starts once the base is defended so you have just a few seconds before the mission ends. 25 seconds to damage and destroy two more Wraiths with the Pistol.
A-5c
Stand-Off Shootout
Kill 100 Covenant with the Shotgun
Easy--Slow. Run around with your starting Shotgun blasting Grunts in the face! The grunts all die fast, there's more shotgun ammo above the base and in a weapon's cache on the left corner of the actual landing pad. It will take more than one playthrough, but kinda fun.
B-1a
Wave Breaker
Kill 20 Suicide Grunts with a Machine Gun Turret
Very Easy--Very Fast. Just jump on one of the Gun Turrets right outside the base and fire away! Grunts start coming right away, just make sure to get the Elites too.
B-1b
Ring of Fire
Kill 30 Grunt Majors with an Incendiary Grenade
Medium--Slow. You start with 3 Incendiary Grenades, and there are 3 more in a grenade box near the middle of the map. So, you have only 6 Grenades per try. Remember, you are going for the white Grunt Minors with the Incendiaries, and try to combine this with meleeing Suicide Grunts. You'll have to restart quite a few times to get your 30, at least 5 times or more.
B-1c
Power Punch-Out
Kill 40 Suicide Grunts with a Melee Attack
Easy--Medium. For this one, I'd recommend spending some XP on an Overshield bonus for this mission, as I did this without the overshield and kept dying from the suicide grenades. You'll probably have to restart the level a few times, but with an overshield bonus you can do this WAY faster than I did it. The Sprint Armor Ability pickup is useful if you don't use the Overshield Armor Ability though. It is located to the right side of the map, right next to the destroyed Wraith. If you use the Sprint ability, you can rush around the map, and if you're quick enough, you can even string a couple suicide melees together.
B-2a
Up Close and Personal
Kill 20 Elite Minors with a Shotgun
Normal--Easiest. You'll want to switch to a Shotgun at the start from the ammo crates. Also grab the Speed Armor Ability. Then, work on this one at the same time as the other two Assault Ops. There are enough Elites in the level to get this in one go, but don't worry about restarting or playing another as you work for all three Assault Ops. Elites go down in 1 or 2 Shotgun shots. There is more Shotgun ammo scattered through the level so don't worry about running out.
B-2b
Chain Reaction
Kill 50 Suicide Grunts with SMGs
Easiest--Medium. Very simple, just wait for the defense segments of the mission, and then lay into the Suicide Grunts with your SMGs. There are very many Suicide Grunts, so you could get this in one go probably(I died plenty being stupid with my shields down, lol), so had several go's at this. Quite fun.
B-2c
Burn Baby Burn!
Kill 100 Covenant with Incendiary Grenades
Easiest--Slow. This looks hard at first, but you can spawn camp the Covenant!! A max of 11 Incendiary Grenades(IG's) are in this mission. You start with 2 IG's, you'll want to pick up the 3 near the start, and then move to the first defense part. Watch where the Covenant are spawning through the barriers, and then throw 2 IG's, one to each spawn point, and watch the Covenant walk into the flame and burn up. When the flame dies out, make some more! When you run out of IG's, mop up this area, stock up on ammo, and move to the next defense portion picking up the 3 more IG's on the right side of the path when you're almost there. Repeat the same thing as before with the spawn points. When you run out of IG's, there are 3 more IG's on the path to the south starting below the Wolverines, along with a few Grunts. Pick those up, run back up top, and spawn camp some more. This will take a few retries of the mission to get all 100, but it's fun.
B-3a
Pincushion
Kill 20 Jackals with a Needler
Easiest--Normal. This is the easy Assault Op. Simply gun down a Jackal, take his Needler, and then shoot all the other Jackals with the Needler taking their Needler ammo as you go. You should be able to get this on your first run if you don't die. Combine with the other Assault Ops!
B-3b
Trigger Happy Demolition
Destroy 10 Shade Turrets with the Shotgun
Easy--Very Slow. Annoying Assault Op, there are only two Shade Turrets on the map. Simply throw one Frag Grenade at them then Shotgun them to pieces. Very quick once you get to the Turrets. Frags are better because the Grunts jump out after the grenade hits. There's one Turret up to the right and one Turret down to the left. I don't believe the Fuel Rod Turret counts for this. 5 restarts required minimum! Also, it seems like it sometimes doesn't count the Shotgun Turret kills.
B-3c
Catch!
Kill 50 Grunt Majors with Grenades
Normal--Very Slow. Another annoying one that requires restarts. The only Grunt Majors on the map are around the Gold Elites at the top right of the map. There are approximately 10 white Grunt Majors up there. You could die after killing them though to get quicker progress and to quickly restart the level.
B-4a
Clean-Up on Aisle Epsilon
Kill 20 Grunt Majors with a Shotgun
Easy--Slow. There is a Shotgun near the start of the bridge you need to cross, lying in front of some wreckage, in the middle of the bridge. There is also another Shotgun halfway across the bridge near the north side of the bridge. The white Grunt Majors are along the two paths up into the Mega Turrets. There are 8 on each run through, with 5 on the left path and 3 on the right so this will take a minimum of 3 run-throughs. They are very easy targets if you keep moving.
B-4b
Plasma Perimeter
Kill 10 Elite Minors with a Shade Turret
Normal--Medium. There are a few tricks to this. You can either do it using the Speed Armor Ability which is found at the very east barrier screen. Or, a very handy little trick is running close to a Grunt occupied Shade Turret, then throwing your default Armor Ability which is the Decoy. The enemies all shoot at it and you can just run up to a Shade and hit "X" to hijack it, then shoot the surrounding Elite(s). You'll have to repeat the mission a few times for this. Try to combine the Assault Ops here.
B-4c
Staring Death in the Eyes
Kill 30 Elite Minors with a Wraith
Easy--Slow. You need to be careful to not get blown up by the Mega Turrets while attacking in a Wraith. The only Elites in this mission are Elite Minors, so no worries there. There are quite a few Elites, at least 10 each time, so this should take 4-5 tries depending on how you kill the Elites. There are 3 Wraiths in the mission, two you can drive and one hijackable, but it's really not worth it if you can keep your Wraith alive. I'd also recommend just doing the first part repeatedly as the rest of the Elites are too far into the mission to make it worth while unless you're doing the other Assault Ops still. Basically, run to the first empty Wraith, kill all the Elites on the bridge, shoot the occupied Wraith past the bridge so the Elite jumps out then kill him, go up the left path past the Grunt Majors and get 2 more Elites up that path, then suicide or restart mission.
B-5a
Head On!
Destroy 20 Wraiths with a Scorpion
Easy--Medium. This will require at least 3 playthroughs because there are only 7 Wraiths each time. Really easy, basically blow up everything you can see. Really fun!
B-5b
Fight Vapor with Fire
Destroy 30 Ghosts with a Scorpion
Easy--Slow. This will require at least 5 playthroughs. I think there are only about 7 Ghosts each playthrough, and they are scattered all around the map. Just blow everything up, and combine this with the Wraiths.
B-5c
Back to the Grave
Destroy 20 Wraiths with a Ghost
Normal--Medium. This is fun, as the Ghost is so extremely powerful! I recommend either jumping out of the Scorpion at the start and using your Speed Armor Ability to get over to my favorite Ghost, all the way to the right side. It's occupied, but you can easily Speed Boost around it and hijack it with "X". Or, you can run the Scorpion that way, but DO NOT destroy the Wraith in your path. You'll want to take that out with the Ghost.
C-1a
Precision Disassembly
Destroy 4 Shade Turrets with a Focus Rifle
Easy--Slow. There are several Elite Majors in this mission. Take the Focus Rifle from the first one you see, and use it on the only Shade Turret in the mission. For a much easier time, hit the Turret with 1 Grenade of any type, then finish it off with the Focus Rifle. Minimum 4 playthroughs for this one Assault Op.
C-1b
Shooting Range
Kill 50 Covenant using Rifles
Very Easy--Medium. You start with a Rifle, and there are lots of easy covenant targets through the mission. You could even kill your teammates for more Rifle ammo. It's a really short mission also, so repeats quickly.
C-1c
Plasma Burn
Kill 40 Covenant with Plasma Grenades
Medium--Slow. This is an annoying Assault Op because you have to rely on grenade drops from Covenant since there are only 3 Plasma Grenades to pick up in the mission, over halfway through it on the north-west side of the main path. I discovered though that if you kill Elite Minors with grenade hits, they seem to more often drop plasmas, which you can then promptly hit some Grunts or Jackals with. Also, Elite Majors(red) always drop a Plasma. Quite luck based, it will take several playthroughs minimum, up to 10+ playthroughs.
C-2a
Explosive Apparation
Destroy 5 Ghosts using Frag Grenades
Normal--Medium. There are two Ghosts that appear during this mission, as part of the 3rd or 4th wave. Just make sure to have a Frag Grenade do the final damage to them, and you're good. You could always use a Plasma first then a Frag to make it easier. Minimum 3 playthroughs since there are only 2 Ghosts each time. One comes from the south-west, and one from the north. I highly recommend picking up the Speed Armor Ability right near where you start. Much better than what you start with. I also recommend the damage boost upgrade. Ghosts only take one Frag then.
C-2b
Moving Target
Kill 40 Drones with an Assault Rifle
Very Easy--Normal. There are a number of Drones that appear from the two holes several times during the mission. There are at least 20+ per playthrough. There are at least two Assault Rifles in the mission for pickups, one is to the far east along the path, and another is to the far west near the boxes. I highly recommend picking up the Speed Armor Ability right near where you start. Much better than what you start with. Recommended to use damage boost upgrade.
C-2c
Beam of Light
Kill 80 Covenant with a Focus Rifle
Very Easy--Normal. There are lots of Grunts and Elites in this mission. If you've already got your Assault Rifle challenge, then you can target the Drones also for more Covenant kills. I'd say you can get at least 30+ Covenant kills in one playthrough with the Focus Rifle. There are 3 Focus Rifle Pickups. One a little to the north next to some random clutter, one a little to the south just to the left of a big rock, and one more to the far west near the Assault Rifle. I highly recommend picking up the Speed Armor Ability right near where you start. Much better than what you start with. Recommended to use damage boost upgrade.
C-3a
A New Sheriff in Town
Kill 20 Elite Minors with Pistols
Medium--Fast. I verified that you can use the Magnum for these Elite Minors as well as the Elite Majors. *Chucklestyle discovered that the Needler counts as a pistol!--useful for saving all your Magnum for the Elite Majors!* *Special credit to Prestd for discovering a wonderful trick to get endless enemies to spawn quickly in this mission!!* "To get the enemies on mission C-3 to constantly spawn, you need to destroy the first 4 wraiths and then run to the end of the level, enemies including the Elite Majors will come pouring through the light wall." There is a Speed Armor Ability up the right side of the map, and you can use the Grenades scattered through the mission for the Wraiths. 2 Grenades for each AA Wraith, and 3-4 Grenades for each regular Wraith.
C-3b
Armed Ambush
Destroy 10 Wraiths with a Machine Gun Turret
Very Easy--Fast. There are quite a few Machine Gun Turrets scattered through the map. Combine this with the Speed Armor Ability, and you can just run from turret to turret destroying all the Wraiths quickly. Will take a couple playthroughs.
C-3c
Dirty Davis
Kill 20 Elite Majors using a Magnum
Medium--Medium. Thanks to Prestd, there is a great trick to get more Elite Majors to spawn! "To get the enemies on mission C-3 to constantly spawn, you need to destroy the first 4 wraiths and then run to the end of the level, enemies including the Elite Majors will come pouring through the light wall." There are also approximately 4-5 Elite Majors that will rush you once you've advanced about halfway up the map. I recommend using a Plasma overcharge to take down their shields, then a quick Magnum shot. Otherwise, it takes at least 5-6 Magnum shots to take them out. Don't forget to use the Speed Armor Ability, and also grab Grenades to help with the Wraiths.
C-4a
Razorback
Kill 10 Elite Majors with a Needler
Very Easy--Medium. There are 4-5 Elite Majors in this level, and they go down very quickly with a Needler. Combine and finish this Assault Op with one of the other two Assault Ops before focusing on the Stealth Elites. You can easily get more Needler ammo from the Jackals in this level, or the ammo crates.
C-4b
Guiding Light
Kill 20 Stealth Elites with a Focus Rifle
Very Easy--Fast. Once you have finished with the Elite Majors, you can start the level, kill the first two Stealth Elites, then Focus Rifle one of the explosive glowing objects and kill yourself. Reload the starting checkpoint, and repeat 10 times very quickly to get this Assault Op.
C-4c
Iron Fist
Kill 20 Stealth Elites with Melee Attacks
Very Easy--Fast. Once you have finished with the Elite Majors, you can start the level, kill the first two Stealth Elites, then Focus Rifle one of the explosive glowing objects and kill yourself. Reload the starting checkpoint, and repeat 10 times very quickly to get this Assault Op.
C-5a
Turn Off Their Lights
Kill 10 Elite Majors with a Focus Rifle
Very Easy--Very Fast. Found a better way. Save your Focus Rifle(pickup near the plasmas), use the damage upgrade. That way it takes far less to kill the Elite Majors, and you can pick up their ammo. Elite majors start rushing you when the countdown reaches 1:26 left. The Focus Rifle takes them down very quickly, and I was able to get all 10 in one go. Don't forget to run away from the action if your shields are down!
C-5b
Brutal Burnout
Kill 5 Brute Chieftains with a Shade Turret
Very Easy--Very Fast. To get this the fastest, simply run around at the start and kill the first 3 Grunt Minors, then run to one of the Shade Turrets and kill the Brute Chieftain who just spawned. Die, rinse, and repeat 4 more times.
C-5c
Special Delivery
Kill 50 Drones with Plasma Grenades
Very Hard--Very Slow. Extremely annoying, unless someone's figured out a trick for this. You have to stand far enough away so that your Plasmas land on the ground underneath where the Drones will be flying and shooting at the engineer. If you do it right, the blast radius will get some of the Drones at the same time. This will take many restarts or playthroughs. Figure on 6+ replays. There are approximately 10 Drones in 2 waves, and there are 3 Plasma Grenades to the left of where you start. Also, the Brute Chieftain drops another Plasma, and sometimes Grunts will drop Plasmas also. How I finished grinding mine out was this way: immediately as it starts, I went right, shotgunned the two Grunts, activated my speed boost, ran left and shotgunned the 3rd grunt. Then, Shotgunned the Brute Chieftain while picking up the other Plasmas, and grabbing the Plasma the Brute drops. From here, I positioned myself a little below the left lower gun cover near where the engineer works, and held the "LT" down so I could position my Plasmas exactly where I wanted. I found the best spot was just a little bit off center to the right, just above the engineer and still in the area behind the gun cover barricades. I also found that throwing the Plasmas when the Drones were not over that spot was best, as they usually flew over it just in time to get blown up. I managed to get a quad-kill with one Plasma this way, although that was very rare.
D-1a
All in a Day's Work
Kill 20 Grunt Minors
Very Easy--Very Fast. There can be literally hundreds of Grunts on this mission.. they will continually spawn out of the bottom left barrier and spawn faster as the countdown goes lower. Use your favorite weapon, and get this fast!
D-1b
Death From Above
Kill 20 Jump-pack Brutes with a Brute Shot
Very Easy--Fast. Simplest way to do this--wait on the starting platform before destroying the first barrier. Brutes will continually respawn, and you can just camp their landing sites. 2 hits with the Brute Shot will take them out, and they drop more ammo. Figure on one Brute every 7+ seconds, and you're done!
D-1c
Premature Detonation
Kill 40 Suicide Grunts with a Focus Rifle
Medium--Normal. This one is slightly tricky. Elite Majors only start spawning when the countdown reaches about 1 minute. At this point, Covenant start pouring through the south-west barrier rapidly, including Grunt Minors, Suicide Grunts, Elite Majors mainly, and some remaining Elite Minors. I recommend taking the Overshield Armor Ability for this mission(I took the Spartan Laser for the doors also), camp the barrier, and when the Elite Majors start spawning, activate
your Overshield, swoop in, grab a Focus Rifle, then stand to one side and just continually fire the beam across the entrance. Elite Majors will charge you if you are close enough, and they'll simply drop more Focus Rifle ammo in front of you to pick up. I died quite a few times trying this, but finally was getting quite successful. If you want to finish the mission, make sure to start heading upwards with at least 10 seconds left assuming you already destroyed the armory door. You can rack up amazing points this way too. When I finally finished one of the missions I ended up with the 6th place overall score on the public leaderboards doing it this way!
D-2a
Who's Laughing Now!?
Kill 10 Jackals with an Assault Rifle
Very Easy--Very Fast. There is an Assault Rifle box straight ahead from where you spawn, against the south side of the rock wall that divides the two northern paths. There is also at least one more AR ammo box further through the mission. And, you just need to point at Jackals and pull the trigger. AR's take care of Jackals really fast. You can easily get 10 in one playthrough.
D-2b
Grapple Hook
Kill 20 Jump-pack Brutes with a Needler
Easy--Medium. The Jump-pack Brutes reinforce the Covenant attacks on the 3 outposts you need to protect and liberate. There are 2 Brutes at each outpost that 'drop' in, so you can get a max of 6 per playthrough. There are lots of Needler ammo pickups you can get from dead Jackals so not a problem, and Brutes go down quickly to Needler ammo.
D-2c
Anvil
Kill 5 Brute Chieftains with a Brute Shot
Easy--Medium. There is only one Chieftain per playthrough, and he spawns at the second outpost; so maybe play up to where he is, then die after taking out the Brutes and repeat making this not quite so slow. Just remember to use the Brute Shot on him, and collect more ammo from the Jump-pack Brutes.
D-3a
Bear Hug
Destroy 10 Wraiths with a Grizzly Tank
Very Easy--Fast. Most of the Wraiths are at the beginning of the mission. There are at least 5 at the start, and they are very easy to destroy with a Grizzly Tank--one shot fires two barrels and takes out a Wraith. Repeat the beginning twice, and you've got this Assault Op.
D-3b
Haunting
Kill 20 Grunt Minors with a Ghost
Very Easy--Fast. This can go even faster if you take the damage boost upgrade on the loadout screen. I recommend combining with the SMG Assault Op. You can easily get into a Ghost by using your default Decoy Armor Ability to distract the Ghost, running up, and pressing "X". There is a Ghost just after the first 5 Wraiths, right behind the first Shade Turret. There is also another you could hijack just a bit further north. From then on, especially with a damage boost, you can wipe everything out. You should be able to get a minimum of 10 Grunt Minors per playthrough.
D-3c
Drive By
Destroy 20 Wraiths with SMGs
Normal--Fast. The way I did this was I first destroyed my companion tanks at the start so they wouldn't shoot the Wraiths, then I used the secondary gun on the Grizzly to damage the Wraiths far enough to get the Elites to jump out. I proceeded to run over the Elites with my Grizzly, then jumped out and SMG'd the Wraiths. That's an easy way to get 5 right at the start, and there are at least 2 more during the mission that you could use your Grizzly or a Ghost to damage and repeat with the SMG. Minimum of 3 playthroughs.
D-4a
Molten Rain
Kill 10 Elite Majors with a Plasma Repeater
Easy--Fast. There are only about 5 Elite Majors that spawn in this mission. They all spawn as part of the Covenant that are chasing the Elephant across the bridge. Make sure to pick up a Plasma Repeater, and target the Red Elite Majors. The Blue Elites drop Plasma Repeaters just in case you didn't remember...
D-4b
Punctured Phalanx
Kill 20 Jackals with SMGs
Hard--Very Slow. The only Jackals in this mission spawn at the very end as the Elephant is going through the barrier to complete the mission. They spawn with groups of Suicide Grunts making it very hard to actually take out the Jackals before they get blown up. This will take multiple playthroughs, possibly up to 10 or more as you can hardly guarantee any Jackal kills. Using the Shock Armor Ability to freeze the Jackals and Grunts might help a little. I found at least 2 SMG pickups through the mission.
D-4c
Blast of Glory
Kill 100 Suicide Grunts with a Plasma Pistol
Very Easy--Slow. You start with a Plasma Pistol, and there are loads of Suicide Grunts to shoot at. I recommend the damage boost upgrade. Also remember that Drones also drop Plasma Pistols as you will run out of ammo. There are pretty much Suicide Grunts everywhere in this mission. It will take a couple playthroughs at least, but goes fairly quickly considering you have to get 100 kills!
D-5a
Is This Yours?
Kill 20 Suicide Grunts with Incendiary Grenades
Very Easy--Fast. Suicide Grunts will only come at you from the top left barrier near the start of the mission unfortunately, so you'll need to capitalize on the Suicide Grunts here. Once again, it's very helpful to throw Incendiary Grenades right next to the barrier to spawning Covenant automatically die in the flames. You start with 3 Incendiary Grenades, and there are 3 more in a grenade chest straight south of where you start, opposite the Elephant that was unloading the troops. You could get up to 6 or more each time through using all the grenades.
D-5b
Border Patrol
Kill 100 Covenant with a Machine Gun Turret
Very Easy--Very Fast. This is great fun, you have a MG Turret near the top, and one near the bottom. Just get on the gun and blast away! You should be able to do this in about 2 playthroughs.
D-5c
Hammer to a Gunfight
Kill 10 Brute Chieftains with a Magnum
Very Easy--Slow. There are only two Brute Chieftains per playthrough, and they both come from the north-west when defending the second group of escaping survivors. Chieftains go down easily, although I did have a damage upgrade equipped. With the damage upgrade Chieftains only took about 4 Magnum shots each. Once you kill the second Chieftain, the mission is almost over... and to get the next you you have to replay the whole mission back up to that point. Update!! I just got 3 Chieftains on my re-run of this achievement to unglitch it. I got two up the left side, and one more came from the bottom right near the second drop-ship!
E-1a
Blind Spot
Kill 10 Drones with a Wraith
Easy--Medium. There is only one Wraith in the mission, about halfway through. You need to either steal it with Invisibility on or just hijack it with Invisibility on. The only Drones you can get with the Wraith fly up out of the center hole in the map. -- Credit to Chucklestyle: you should be able to bait towards the wraith a group of 6 drones that fly out of the center hole, and if you avoid the Drones near mission start, you can get some of them as well. Should only take two runs through!
E-1b
Let It Rain!
Kill 20 Stealth Elites with SMGs
Easy--Medium. There are a lot of Stealth Elites in this mission, and you start with SMGs. I didn't find any other SMG ammo through the mission though, and I recommend you use the damage upgrade on the loadout screen. There are 2 Stealth Elites up the left side at the start, 2 more up the middle path, 2 more where the Wraith is(check the sides of the Wraith area), and at least 2 more at the final area. Should take at least 3 playthroughs.
E-1c
Come out of the Shade
Destroy 10 Stealth Elites with a Shade Turret
Hard--Slow. This one is very annoying, as you have to lead the Stealth Elites up to the Shade Turrets, and then shoot them before they run away. I had success getting at least one Stealth Elite each time using the Shade Turret just south of the Wraith, and at least two more Stealth Elites in the final area, using the closest Shade Turret. You can sit in that final Shade Turret and snipe the red squares off the screen. Just go by the map, and aim and shoot in the direction, and you should see your score go up when you get a hit. -- Credit to Chucklestyle, if this works as well as he said, it's a fantastic find! "You can bait the stealths and as long as you're not facing them they should follow you all around the level. I would head left from start and let the first one kill my team, then lure him up to the first turret. Make your way up to the 2nd turret, jump in it and waste everything with the turret, then you can lure at least a few more to this turret.
E-2a
Light at the End of the Tunnel
Kill 20 Grunt Majors with a Focus Rifle
Very Easy--Fast. Work on the Elite Majors Assault Op first, the others secondary. You start with a Focus Rifle, and there is unlimited ammo for it in a cache on the right side of the pathway. I recommend using the bonus damage upgrade to get the fastest possible kills. There are quite a few white Grunt Majors, and you should be able to get this in one playthrough.
E-2b
Scorched Earth
Kill 10 Elite Majors using Incendiary Grenades
Easy--Slow. Excellent improvement suggested by qG Lecca!! : 'Pick up the Stun ability next to the plasma repeater locker on the left a bit down from where you start. Stun them, aim your grenade on them and voila. 3 kills every time.'
The Elite Majors only show up close to the end of the mission, and you have only 3 Incendiary Grenades to start with. I wasn't able to find any other Incendiary Grenades either unfortunately. If you're very accurate, you could probably do this in 4 playthroughs.
E-2c
Fight Plasma with Plasma
Kill 100 Grunts with a Plasma Pistol
Very Easy--Slow. Work on the Elite Majors Assault Op first, the others secondary. The first Grunts will drop Plasma Pistols, and you can just keep killing grunts from then on easily. It will take a couple playthroughs at least though. I highly recommend the damage boost upgrade.
E-3a
All Charged Up
Kill 30 Jackals with a Plasma Pistol
Easy--Slow. Go north, stealth, kill a grunt, take his Plasma Pistol, and then proceed to use it against all the Jackals you can find. There will be quite a few, I'm guessing at least 20 Jackals per playthrough, however this just takes a long time to do.
E-3b
Dynamite Fishing
Kill 50 Grunt Majors with Grenades
Easy--Slow. You start with some grenades, and just run around picking up grenades and whenever you see a white Grunt Major use a grenade on him. You'll get this eventually around when you get the Jackal Assault Op.
E-3c
Stick Around!
Kill 100 Covenant with a Needler
Easy--Slow. Kill a Jackal, take his Needler, then Needle every enemy that isn't a Grunt Major or a Jackal, as you can work on all 3 Assault Ops at one time.
E-4a
Ghost Blaster
Destroy 5 Ghosts using a Plasma Pistol
Very Easy--Fast. There is a very very easy way of doing this. You start the mission with a Plasma Pistol and there is a parked Ghost straight north from the start. Just run up there, and overcharge the Ghost 3 times, die, and repeat 5 more times!
E-4b
Plasma Transfusion
Destroy 10 Shade Turrets with a Ghost
Easy--Medium. There is a Ghost straight up from the start, and there are at least 3 Shade Turrets you can take out with your Ghost during the mission. Just repeat several times and you'll get this quickly.
E-4c
Road Warrior
Kill 50 Covenant with a Ghost
Very Easy--Fast. Take the Ghost from the beginning of the mission and just kill everything with it. Very easy. You probably won't get 50 in one playthrough, but 2 should do it! Just watch out for Wraith shots.
E-5a
Rodent Removal
Kill 10 Jackals
Very Easy--Very Fast. Do not worry about this one, you'll get it at the same time as you kill Jackals with Brute Shot.
E-5b
Exterminator
Kill 25 Elites with an Assault Rifle
Easy--Fast. There is an Assault Rifle crate on the left side of the area. There are about 8 Elites that come through the mission, so you'll have to replay it about 5 times assuming you get all the Elites with an Assault Rifle.
E-5c
Perosus Latrunculus Exterminatus
Kill 20 Jackals with a Brute Shot
Very Easy--Fast. If you want to do this one extra fast, simple start the mission, take out the Jackals facing you with the Brute Shot, and then die, and restart.
F-1a
Ballistic Engineering
Destroy 5 Shade Turrets with a Magnum
Easy--Fast. I recommend the damage booster for this one. Use one grenade on the turrets, and then finish off with the Magnum. There are at least 4 Shade Turrets scattered around the area, and you could get this easily in two playthroughs. There is no more Magnum ammo though, so watch your supply.
F-1b
Plastered Purple
Kill 20 Elites with Frag Grenades
Normal--Slow. You start with 3 Frag Grenades, and that's it. You'll just need to be very accurate with the Elites, as I found the Frags missing often and the Elites also running away from them. Die and restart if this is your last Assault Op after you use your third Frag Grenade, and be careful you don't accidentally use your Frags instead of Plasmas!
F-1c
Carpet Bombing
Kill 60 Covenant with a Brute Shot
Very Easy--Fast. I recommend the damage booster so you can one-shot Brutes with the Brute Shot. Otherwise they are two shots. There happens to be unlimited Covenant and unlimited Brute Shot spawns in this mission. On the top left are of the map, where the Jump-pack Brute flies in, you can kill him and take his Brute Shot, and just keep killing Covenant and spawn killing the Brute for more ammo. Works great.
F-2a
Mauled to Death
Destroy 10 Ghosts with a Grizzly Tank
Very Easy--Medium. You start in a Grizzly! There are only about 3-4 ghosts per playthrough, and they are NO match for a Grizzly. Enjoy this mission. Just watch out for the Mega-turret shots as they can damage your Grizzly quite fast.
F-2b
Mine Field
Kill 20 Suicide Grunts with a Scorpion Tank
Easy--Slow. You start in a Grizzly! Jump out and get in the Scorpion just a bit farther up. There are not many Suicide Grunts in this mission, maybe a total of 8, and keeping the Scorpion tank alive can be challenging. Just be very careful about the Mega-Turret shots, Ghosts, and Wraiths and you should manage. It takes a while though. I highly recommend the damage boost upgrade to keep your Scorpion safer through offense! (updated starting tank thanks to | LUNCHTREY I )
F-2c
Beyond the Grave
Kill 60 Covenant with a Ghost
Easy--Medium. Quite fun. Head north until you see a Ghost, hijack it, and then melt everything with Plasma! Ghosts aren't invincible so use with care though, stay out of range, and do NOT get hit by the Mega-Turret shots.
F-3a
Voodoo Doll
Kill 10 Jackals with a Needler
Easy--Fast. You start with a Needler, and there are plenty of Jackals near the start. If necessary a second playthrough should easily get you this Assault Op.
F-3b
Puncture Burn
Kill 30 Grunts with a Plasma Repeater
Very Easy--Fast. You start with a Repeater--just use it on any Grunts you see, and you should have this one easily in two playthroughs. You could always restart after clearing out the first Grunts also.
F-3c
Explosive Arsenal
Kill 60 Elites with Frag Grenades
Hard--Very Slow. This is a stupid Assault Op. You start with 3 Frag Grenades, and there are no more. What I did was load up the mission, run straight for the first Elite ignoring all other Covenant, Frag him, if successful, run straight to the 2nd Elite who is further north and east, Frag him, if successful run to the last starting Elite who is at the far east barrier. As soon as I threw all 3 Frags and got my kills, I would restart the mission and repeat. It does count. Takes a minimum of 20 restarts, figure on closer to 40-50 restarts though because of grenade aiming and Elites moving.
F-4a
Great Balls of Plasma
Kill 10 Elites with a Shade Turret
Easy--Very Fast. The trick for this is to stealth and take over the Shade Turret at the far west shield generator, and then just camp in it shooting everything that comes.
F-4b
Slugger
Kill 20 Stealth Elites with a Melee Attack
Easy--Fast. I highly recommend the damage upgrade, because then the Stealth Elites are only two melees. There are a lot of them, at least 10 per playthrough, so just go through and melee them all. Two playthroughs should easily do it.
F-4c
Bug Fixer
Kill 80 Drones with a Plasma Pistol
Normal--Medium. My estimate on the total number of Drones for one playthrough is close to 30. They spawn out of the holes next to each path, and usually more will spawn after you complete an objective and then repass an area that you previously cleared. The best place for Drone killing is the shield generator on the right side, as a stream of about 12 Drones attacks at that objective. Just run around the paths and 3-4 Drones will spawn at a time. Then complete some objectives, more will spawn, etc.
F-5a
Rain of Pain
Kill 20 Elites with a SMG
Easy--Medium. Go for the Suicide Grunt Assault Op first! I highly recommend damage upgrade for this Assault Op. After finishing with the Suicide Grunts, go back to the start, gun the two Elite Majors down with your SMG, and immediately restart. Way faster than going through the mission!
F-5b
Return to Sender
Kill 20 Suicide Grunts with Plasma Grenades
Easy--Very Slow. Suicide Grunts are few and far between on this mission unfortunately. There might be a total of 5-6 per mission, so you will have to make multiple playthroughs. Fortunately there are LOTS of Plasma Grenades lying around. Take a Focus Rifle, unlimited ammo from the cache, and just gun down everything that isn't a Suicide Grunt.
F-5c
Laser Surgery
Kill 40 Elites with a Focus Rifle
Easy--Slow. Go for the Suicide Grunt Assault Op first! I highly recommend damage upgrade for this Assault Op. After finishing with the Suicide Grunts, go back to the start, run across the bridge, activate Speed Armor Ability as soon as you can, race to the Focus Rifle cache just on the left side of the big center hole, grab a Focus Rifle, gun down the two Elite Majors, and restart level. Repeat 20 times or fewer depending how many you got while going for Suicide Grunts. Way faster than going through the mission!
Warm Up That Pitching Arm
Kill 3 Grunt Minors with Frag Grenades
Easy--Very Fast. You start with Frag Grenades and Grunt Minors are the first attackers. Just 'Lt' at them and you've got it.
A-1b
Rookie Target Practice
Kill 20 Elite Minors
Very Easy--Slow. This will make you replay the mission multiple times, as there are only 4 Elites in it.
A-1c
Sidearm Slaughter
Kill 50 Grunt Minors with a Magnum
Very Easy--Slow. Annother one that makes you have to replay it, combine this with the previous Assault Op. Switch to your one-hit-kill Magnum and have at it!
A-2a
A Shady Detonation
Destroy 2 Shade Turrets with Plasma Grenades
Very Easy--Very Fast. Remember, the Shade Turrets are the ones that the Grunts jump into to shoot at you. It takes 2 Plasmas to take one out, so I recommend using a Frag or other weapon first then your Plasma.
A-2b
Scorch Mark
Kill 20 Grunt Minors with a Plasma Pistol
Easy--Fast. This one goes quickly, with a few level repeats. Shoot the grunt right at the start with your pistol, grab his pistol, and 'headshot' the grunts from then on. Repeat until you get it. Combine this with the next Assault Op! Probably 3 playthroughs for this one.
A-2c
Taste Your Own Medicine!
Kill 40 Elite Minors with Plasma Repeaters
Very Easy--Slow. Almost the same as above, except kill the Elite right at the start, then use his gun on the rest. Alternatively, you could run past the first Elite to the weapons crate, grab a Repeater, and kill that Elite. If you kill him first, then you can get 5 Elites per playthrough, If you pick up the weapon first you can get 6. Combine with The previous Assault Op.
A-3a
Gung Ho!
Destroy 3 Shade Turrets with a Plasma Pistol
Easy--Fast. Shade Turrets take two Grenades to blow up, so use one Grenade then Plasma overcharge the turrets. You can grab a Plasma Pistol off the first Grunt. If you're fast, you can combine this with the score challenge, but not recommended. You can definitely combine this with the 40 Grunt kills to save time.
A-3b
Expert Target Practice
Kill 30 Elite Minors with an Assault Rifle
Very Easy--Slow. Keep your Assault Rifle, and keep replaying the level. I think you get about 7-8 Elites per playthrough, so it's not many repeats. I got this one last of the three.
A-3c
Sentry Post
Kill 40 Grunt Minors with a Shade Turret
Medium--Slow. Use your Armor Ability and run to each Shade Turret. You can start firing almost as soon as you're in it and it points, so rush to different turrets and target all the Grunts. You can also target grunts who are off-screen! There are a LOT of grunts in this level, so you should get this in about 3 playthroughs if you get them all each go. Combine with the Elite Minors Assault Op--jump out of the turret fast when you see an Elite.
A-4a
Stick To This!
Kill 5 Elite Minors with Plasma Grenades
Hard--Fast. For this one, jump into the Wraith, destroy the barrier, then proceed upwards on foot. You have the Speed Armor Ability so use it! There's one Elite close, and several more through the level. Try to get a sticky, otherwise they'll dodge. There are more plasmas near the start, go a little up, and on the right side where the Wraith tank won't fit, there are two grunts, two shields, and some plasmas. You can also find more plasmas through the level from dead enemies and some just south of the last AA Wraith. Combine with the next Assault Op.
A-4b
Burn Ward
Kill 30 Grunt Minors with a Plasma Repeater
Easy--Normal. You start with a Repeater. Like the last, use the Wraith to destroy the barrier, then proceed upwards on foot annihilating all Grunts with your Repeater. You can get more ammo for it from a weapons cache on the left side more than half-way through the level, and of course, dead Elites... combine with the previous Assault Op if you can.
A-4c
Wrath of the Wraith
Destroy 15 Wraiths with a Wraith
Very Easy--Fast. Jump in the Wraith, and go to town! This was fun, and there's really nothing to say, other than, make sure to keep dodging enemy wraith shots, and keep far enough away that their plasma gunner can't shoot. First time I played this level, I lost my Wraith. Last time I played the level, my Wraith ended with 75% health.
A-5a
Meatgrinder Mayhem
Kill 15 Grunt Minors with a Machine Gun Turret
Very Easy--Fast. The main turret you'll want to use is the one at the top of the Hornet landing pad. You can probably get all 15 Grunt Minors in one go. Remember though, the yellow ones are Grunt Minors, the white are Grunt Majors. If you don't get it all in one go at that turret, run around to the bottom turret, and go back and forth until you get it.
A-5b
Sting Like a Bee
Destroy 4 Wraiths with a Magnum
Very Hard--Slowest. There are 3 Wraiths that show up at the end of the mission. One Wraith shows up through the bottom barrier with one minute left, and two more come through the left and right barriers just after when the first countdown reaches zero. To destroy the Wraith with a Magnum though, you need to damage it first with something else down to about 3 bars or less. I recommend using a damage booster when going for this Assault Op. The best way to damage the Wraith is with Plasmas, they take it's health down very fast, and I believe two Plasmas take it's health down about 70-90%. The elites will jump out when it's at about 30% damage though and you can't tell how little health is left at that point because the health bar disappears. So, you could use Plasmas, sentry turrets work very well, or you could even hijack the Wraith and then get yourself shot up while watching the health bar. JUMP OUT before it gets destroyed though or you fail the mission! Either way you do it, Sentry Turrets and Grenades are the best, DO NOT USE the Magnum only, it will run out of ammo fast and I never found more Magnum ammo on the map. Even worse, there are only 3 Wraiths per playthrough and they are at the very end of the playthrough; so if you die, you have to restart and do the base defense all over again; and, there's a 25 second timer that starts once the base is defended so you have just a few seconds before the mission ends. 25 seconds to damage and destroy two more Wraiths with the Pistol.
A-5c
Stand-Off Shootout
Kill 100 Covenant with the Shotgun
Easy--Slow. Run around with your starting Shotgun blasting Grunts in the face! The grunts all die fast, there's more shotgun ammo above the base and in a weapon's cache on the left corner of the actual landing pad. It will take more than one playthrough, but kinda fun.
B-1a
Wave Breaker
Kill 20 Suicide Grunts with a Machine Gun Turret
Very Easy--Very Fast. Just jump on one of the Gun Turrets right outside the base and fire away! Grunts start coming right away, just make sure to get the Elites too.
B-1b
Ring of Fire
Kill 30 Grunt Majors with an Incendiary Grenade
Medium--Slow. You start with 3 Incendiary Grenades, and there are 3 more in a grenade box near the middle of the map. So, you have only 6 Grenades per try. Remember, you are going for the white Grunt Minors with the Incendiaries, and try to combine this with meleeing Suicide Grunts. You'll have to restart quite a few times to get your 30, at least 5 times or more.
B-1c
Power Punch-Out
Kill 40 Suicide Grunts with a Melee Attack
Easy--Medium. For this one, I'd recommend spending some XP on an Overshield bonus for this mission, as I did this without the overshield and kept dying from the suicide grenades. You'll probably have to restart the level a few times, but with an overshield bonus you can do this WAY faster than I did it. The Sprint Armor Ability pickup is useful if you don't use the Overshield Armor Ability though. It is located to the right side of the map, right next to the destroyed Wraith. If you use the Sprint ability, you can rush around the map, and if you're quick enough, you can even string a couple suicide melees together.
B-2a
Up Close and Personal
Kill 20 Elite Minors with a Shotgun
Normal--Easiest. You'll want to switch to a Shotgun at the start from the ammo crates. Also grab the Speed Armor Ability. Then, work on this one at the same time as the other two Assault Ops. There are enough Elites in the level to get this in one go, but don't worry about restarting or playing another as you work for all three Assault Ops. Elites go down in 1 or 2 Shotgun shots. There is more Shotgun ammo scattered through the level so don't worry about running out.
B-2b
Chain Reaction
Kill 50 Suicide Grunts with SMGs
Easiest--Medium. Very simple, just wait for the defense segments of the mission, and then lay into the Suicide Grunts with your SMGs. There are very many Suicide Grunts, so you could get this in one go probably(I died plenty being stupid with my shields down, lol), so had several go's at this. Quite fun.
B-2c
Burn Baby Burn!
Kill 100 Covenant with Incendiary Grenades
Easiest--Slow. This looks hard at first, but you can spawn camp the Covenant!! A max of 11 Incendiary Grenades(IG's) are in this mission. You start with 2 IG's, you'll want to pick up the 3 near the start, and then move to the first defense part. Watch where the Covenant are spawning through the barriers, and then throw 2 IG's, one to each spawn point, and watch the Covenant walk into the flame and burn up. When the flame dies out, make some more! When you run out of IG's, mop up this area, stock up on ammo, and move to the next defense portion picking up the 3 more IG's on the right side of the path when you're almost there. Repeat the same thing as before with the spawn points. When you run out of IG's, there are 3 more IG's on the path to the south starting below the Wolverines, along with a few Grunts. Pick those up, run back up top, and spawn camp some more. This will take a few retries of the mission to get all 100, but it's fun.
B-3a
Pincushion
Kill 20 Jackals with a Needler
Easiest--Normal. This is the easy Assault Op. Simply gun down a Jackal, take his Needler, and then shoot all the other Jackals with the Needler taking their Needler ammo as you go. You should be able to get this on your first run if you don't die. Combine with the other Assault Ops!
B-3b
Trigger Happy Demolition
Destroy 10 Shade Turrets with the Shotgun
Easy--Very Slow. Annoying Assault Op, there are only two Shade Turrets on the map. Simply throw one Frag Grenade at them then Shotgun them to pieces. Very quick once you get to the Turrets. Frags are better because the Grunts jump out after the grenade hits. There's one Turret up to the right and one Turret down to the left. I don't believe the Fuel Rod Turret counts for this. 5 restarts required minimum! Also, it seems like it sometimes doesn't count the Shotgun Turret kills.
B-3c
Catch!
Kill 50 Grunt Majors with Grenades
Normal--Very Slow. Another annoying one that requires restarts. The only Grunt Majors on the map are around the Gold Elites at the top right of the map. There are approximately 10 white Grunt Majors up there. You could die after killing them though to get quicker progress and to quickly restart the level.
B-4a
Clean-Up on Aisle Epsilon
Kill 20 Grunt Majors with a Shotgun
Easy--Slow. There is a Shotgun near the start of the bridge you need to cross, lying in front of some wreckage, in the middle of the bridge. There is also another Shotgun halfway across the bridge near the north side of the bridge. The white Grunt Majors are along the two paths up into the Mega Turrets. There are 8 on each run through, with 5 on the left path and 3 on the right so this will take a minimum of 3 run-throughs. They are very easy targets if you keep moving.
B-4b
Plasma Perimeter
Kill 10 Elite Minors with a Shade Turret
Normal--Medium. There are a few tricks to this. You can either do it using the Speed Armor Ability which is found at the very east barrier screen. Or, a very handy little trick is running close to a Grunt occupied Shade Turret, then throwing your default Armor Ability which is the Decoy. The enemies all shoot at it and you can just run up to a Shade and hit "X" to hijack it, then shoot the surrounding Elite(s). You'll have to repeat the mission a few times for this. Try to combine the Assault Ops here.
B-4c
Staring Death in the Eyes
Kill 30 Elite Minors with a Wraith
Easy--Slow. You need to be careful to not get blown up by the Mega Turrets while attacking in a Wraith. The only Elites in this mission are Elite Minors, so no worries there. There are quite a few Elites, at least 10 each time, so this should take 4-5 tries depending on how you kill the Elites. There are 3 Wraiths in the mission, two you can drive and one hijackable, but it's really not worth it if you can keep your Wraith alive. I'd also recommend just doing the first part repeatedly as the rest of the Elites are too far into the mission to make it worth while unless you're doing the other Assault Ops still. Basically, run to the first empty Wraith, kill all the Elites on the bridge, shoot the occupied Wraith past the bridge so the Elite jumps out then kill him, go up the left path past the Grunt Majors and get 2 more Elites up that path, then suicide or restart mission.
B-5a
Head On!
Destroy 20 Wraiths with a Scorpion
Easy--Medium. This will require at least 3 playthroughs because there are only 7 Wraiths each time. Really easy, basically blow up everything you can see. Really fun!
B-5b
Fight Vapor with Fire
Destroy 30 Ghosts with a Scorpion
Easy--Slow. This will require at least 5 playthroughs. I think there are only about 7 Ghosts each playthrough, and they are scattered all around the map. Just blow everything up, and combine this with the Wraiths.
B-5c
Back to the Grave
Destroy 20 Wraiths with a Ghost
Normal--Medium. This is fun, as the Ghost is so extremely powerful! I recommend either jumping out of the Scorpion at the start and using your Speed Armor Ability to get over to my favorite Ghost, all the way to the right side. It's occupied, but you can easily Speed Boost around it and hijack it with "X". Or, you can run the Scorpion that way, but DO NOT destroy the Wraith in your path. You'll want to take that out with the Ghost.
C-1a
Precision Disassembly
Destroy 4 Shade Turrets with a Focus Rifle
Easy--Slow. There are several Elite Majors in this mission. Take the Focus Rifle from the first one you see, and use it on the only Shade Turret in the mission. For a much easier time, hit the Turret with 1 Grenade of any type, then finish it off with the Focus Rifle. Minimum 4 playthroughs for this one Assault Op.
C-1b
Shooting Range
Kill 50 Covenant using Rifles
Very Easy--Medium. You start with a Rifle, and there are lots of easy covenant targets through the mission. You could even kill your teammates for more Rifle ammo. It's a really short mission also, so repeats quickly.
C-1c
Plasma Burn
Kill 40 Covenant with Plasma Grenades
Medium--Slow. This is an annoying Assault Op because you have to rely on grenade drops from Covenant since there are only 3 Plasma Grenades to pick up in the mission, over halfway through it on the north-west side of the main path. I discovered though that if you kill Elite Minors with grenade hits, they seem to more often drop plasmas, which you can then promptly hit some Grunts or Jackals with. Also, Elite Majors(red) always drop a Plasma. Quite luck based, it will take several playthroughs minimum, up to 10+ playthroughs.
C-2a
Explosive Apparation
Destroy 5 Ghosts using Frag Grenades
Normal--Medium. There are two Ghosts that appear during this mission, as part of the 3rd or 4th wave. Just make sure to have a Frag Grenade do the final damage to them, and you're good. You could always use a Plasma first then a Frag to make it easier. Minimum 3 playthroughs since there are only 2 Ghosts each time. One comes from the south-west, and one from the north. I highly recommend picking up the Speed Armor Ability right near where you start. Much better than what you start with. I also recommend the damage boost upgrade. Ghosts only take one Frag then.
C-2b
Moving Target
Kill 40 Drones with an Assault Rifle
Very Easy--Normal. There are a number of Drones that appear from the two holes several times during the mission. There are at least 20+ per playthrough. There are at least two Assault Rifles in the mission for pickups, one is to the far east along the path, and another is to the far west near the boxes. I highly recommend picking up the Speed Armor Ability right near where you start. Much better than what you start with. Recommended to use damage boost upgrade.
C-2c
Beam of Light
Kill 80 Covenant with a Focus Rifle
Very Easy--Normal. There are lots of Grunts and Elites in this mission. If you've already got your Assault Rifle challenge, then you can target the Drones also for more Covenant kills. I'd say you can get at least 30+ Covenant kills in one playthrough with the Focus Rifle. There are 3 Focus Rifle Pickups. One a little to the north next to some random clutter, one a little to the south just to the left of a big rock, and one more to the far west near the Assault Rifle. I highly recommend picking up the Speed Armor Ability right near where you start. Much better than what you start with. Recommended to use damage boost upgrade.
C-3a
A New Sheriff in Town
Kill 20 Elite Minors with Pistols
Medium--Fast. I verified that you can use the Magnum for these Elite Minors as well as the Elite Majors. *Chucklestyle discovered that the Needler counts as a pistol!--useful for saving all your Magnum for the Elite Majors!* *Special credit to Prestd for discovering a wonderful trick to get endless enemies to spawn quickly in this mission!!* "To get the enemies on mission C-3 to constantly spawn, you need to destroy the first 4 wraiths and then run to the end of the level, enemies including the Elite Majors will come pouring through the light wall." There is a Speed Armor Ability up the right side of the map, and you can use the Grenades scattered through the mission for the Wraiths. 2 Grenades for each AA Wraith, and 3-4 Grenades for each regular Wraith.
C-3b
Armed Ambush
Destroy 10 Wraiths with a Machine Gun Turret
Very Easy--Fast. There are quite a few Machine Gun Turrets scattered through the map. Combine this with the Speed Armor Ability, and you can just run from turret to turret destroying all the Wraiths quickly. Will take a couple playthroughs.
C-3c
Dirty Davis
Kill 20 Elite Majors using a Magnum
Medium--Medium. Thanks to Prestd, there is a great trick to get more Elite Majors to spawn! "To get the enemies on mission C-3 to constantly spawn, you need to destroy the first 4 wraiths and then run to the end of the level, enemies including the Elite Majors will come pouring through the light wall." There are also approximately 4-5 Elite Majors that will rush you once you've advanced about halfway up the map. I recommend using a Plasma overcharge to take down their shields, then a quick Magnum shot. Otherwise, it takes at least 5-6 Magnum shots to take them out. Don't forget to use the Speed Armor Ability, and also grab Grenades to help with the Wraiths.
C-4a
Razorback
Kill 10 Elite Majors with a Needler
Very Easy--Medium. There are 4-5 Elite Majors in this level, and they go down very quickly with a Needler. Combine and finish this Assault Op with one of the other two Assault Ops before focusing on the Stealth Elites. You can easily get more Needler ammo from the Jackals in this level, or the ammo crates.
C-4b
Guiding Light
Kill 20 Stealth Elites with a Focus Rifle
Very Easy--Fast. Once you have finished with the Elite Majors, you can start the level, kill the first two Stealth Elites, then Focus Rifle one of the explosive glowing objects and kill yourself. Reload the starting checkpoint, and repeat 10 times very quickly to get this Assault Op.
C-4c
Iron Fist
Kill 20 Stealth Elites with Melee Attacks
Very Easy--Fast. Once you have finished with the Elite Majors, you can start the level, kill the first two Stealth Elites, then Focus Rifle one of the explosive glowing objects and kill yourself. Reload the starting checkpoint, and repeat 10 times very quickly to get this Assault Op.
C-5a
Turn Off Their Lights
Kill 10 Elite Majors with a Focus Rifle
Very Easy--Very Fast. Found a better way. Save your Focus Rifle(pickup near the plasmas), use the damage upgrade. That way it takes far less to kill the Elite Majors, and you can pick up their ammo. Elite majors start rushing you when the countdown reaches 1:26 left. The Focus Rifle takes them down very quickly, and I was able to get all 10 in one go. Don't forget to run away from the action if your shields are down!
C-5b
Brutal Burnout
Kill 5 Brute Chieftains with a Shade Turret
Very Easy--Very Fast. To get this the fastest, simply run around at the start and kill the first 3 Grunt Minors, then run to one of the Shade Turrets and kill the Brute Chieftain who just spawned. Die, rinse, and repeat 4 more times.
C-5c
Special Delivery
Kill 50 Drones with Plasma Grenades
Very Hard--Very Slow. Extremely annoying, unless someone's figured out a trick for this. You have to stand far enough away so that your Plasmas land on the ground underneath where the Drones will be flying and shooting at the engineer. If you do it right, the blast radius will get some of the Drones at the same time. This will take many restarts or playthroughs. Figure on 6+ replays. There are approximately 10 Drones in 2 waves, and there are 3 Plasma Grenades to the left of where you start. Also, the Brute Chieftain drops another Plasma, and sometimes Grunts will drop Plasmas also. How I finished grinding mine out was this way: immediately as it starts, I went right, shotgunned the two Grunts, activated my speed boost, ran left and shotgunned the 3rd grunt. Then, Shotgunned the Brute Chieftain while picking up the other Plasmas, and grabbing the Plasma the Brute drops. From here, I positioned myself a little below the left lower gun cover near where the engineer works, and held the "LT" down so I could position my Plasmas exactly where I wanted. I found the best spot was just a little bit off center to the right, just above the engineer and still in the area behind the gun cover barricades. I also found that throwing the Plasmas when the Drones were not over that spot was best, as they usually flew over it just in time to get blown up. I managed to get a quad-kill with one Plasma this way, although that was very rare.
D-1a
All in a Day's Work
Kill 20 Grunt Minors
Very Easy--Very Fast. There can be literally hundreds of Grunts on this mission.. they will continually spawn out of the bottom left barrier and spawn faster as the countdown goes lower. Use your favorite weapon, and get this fast!
D-1b
Death From Above
Kill 20 Jump-pack Brutes with a Brute Shot
Very Easy--Fast. Simplest way to do this--wait on the starting platform before destroying the first barrier. Brutes will continually respawn, and you can just camp their landing sites. 2 hits with the Brute Shot will take them out, and they drop more ammo. Figure on one Brute every 7+ seconds, and you're done!
D-1c
Premature Detonation
Kill 40 Suicide Grunts with a Focus Rifle
Medium--Normal. This one is slightly tricky. Elite Majors only start spawning when the countdown reaches about 1 minute. At this point, Covenant start pouring through the south-west barrier rapidly, including Grunt Minors, Suicide Grunts, Elite Majors mainly, and some remaining Elite Minors. I recommend taking the Overshield Armor Ability for this mission(I took the Spartan Laser for the doors also), camp the barrier, and when the Elite Majors start spawning, activate
your Overshield, swoop in, grab a Focus Rifle, then stand to one side and just continually fire the beam across the entrance. Elite Majors will charge you if you are close enough, and they'll simply drop more Focus Rifle ammo in front of you to pick up. I died quite a few times trying this, but finally was getting quite successful. If you want to finish the mission, make sure to start heading upwards with at least 10 seconds left assuming you already destroyed the armory door. You can rack up amazing points this way too. When I finally finished one of the missions I ended up with the 6th place overall score on the public leaderboards doing it this way!
D-2a
Who's Laughing Now!?
Kill 10 Jackals with an Assault Rifle
Very Easy--Very Fast. There is an Assault Rifle box straight ahead from where you spawn, against the south side of the rock wall that divides the two northern paths. There is also at least one more AR ammo box further through the mission. And, you just need to point at Jackals and pull the trigger. AR's take care of Jackals really fast. You can easily get 10 in one playthrough.
D-2b
Grapple Hook
Kill 20 Jump-pack Brutes with a Needler
Easy--Medium. The Jump-pack Brutes reinforce the Covenant attacks on the 3 outposts you need to protect and liberate. There are 2 Brutes at each outpost that 'drop' in, so you can get a max of 6 per playthrough. There are lots of Needler ammo pickups you can get from dead Jackals so not a problem, and Brutes go down quickly to Needler ammo.
D-2c
Anvil
Kill 5 Brute Chieftains with a Brute Shot
Easy--Medium. There is only one Chieftain per playthrough, and he spawns at the second outpost; so maybe play up to where he is, then die after taking out the Brutes and repeat making this not quite so slow. Just remember to use the Brute Shot on him, and collect more ammo from the Jump-pack Brutes.
D-3a
Bear Hug
Destroy 10 Wraiths with a Grizzly Tank
Very Easy--Fast. Most of the Wraiths are at the beginning of the mission. There are at least 5 at the start, and they are very easy to destroy with a Grizzly Tank--one shot fires two barrels and takes out a Wraith. Repeat the beginning twice, and you've got this Assault Op.
D-3b
Haunting
Kill 20 Grunt Minors with a Ghost
Very Easy--Fast. This can go even faster if you take the damage boost upgrade on the loadout screen. I recommend combining with the SMG Assault Op. You can easily get into a Ghost by using your default Decoy Armor Ability to distract the Ghost, running up, and pressing "X". There is a Ghost just after the first 5 Wraiths, right behind the first Shade Turret. There is also another you could hijack just a bit further north. From then on, especially with a damage boost, you can wipe everything out. You should be able to get a minimum of 10 Grunt Minors per playthrough.
D-3c
Drive By
Destroy 20 Wraiths with SMGs
Normal--Fast. The way I did this was I first destroyed my companion tanks at the start so they wouldn't shoot the Wraiths, then I used the secondary gun on the Grizzly to damage the Wraiths far enough to get the Elites to jump out. I proceeded to run over the Elites with my Grizzly, then jumped out and SMG'd the Wraiths. That's an easy way to get 5 right at the start, and there are at least 2 more during the mission that you could use your Grizzly or a Ghost to damage and repeat with the SMG. Minimum of 3 playthroughs.
D-4a
Molten Rain
Kill 10 Elite Majors with a Plasma Repeater
Easy--Fast. There are only about 5 Elite Majors that spawn in this mission. They all spawn as part of the Covenant that are chasing the Elephant across the bridge. Make sure to pick up a Plasma Repeater, and target the Red Elite Majors. The Blue Elites drop Plasma Repeaters just in case you didn't remember...
D-4b
Punctured Phalanx
Kill 20 Jackals with SMGs
Hard--Very Slow. The only Jackals in this mission spawn at the very end as the Elephant is going through the barrier to complete the mission. They spawn with groups of Suicide Grunts making it very hard to actually take out the Jackals before they get blown up. This will take multiple playthroughs, possibly up to 10 or more as you can hardly guarantee any Jackal kills. Using the Shock Armor Ability to freeze the Jackals and Grunts might help a little. I found at least 2 SMG pickups through the mission.
D-4c
Blast of Glory
Kill 100 Suicide Grunts with a Plasma Pistol
Very Easy--Slow. You start with a Plasma Pistol, and there are loads of Suicide Grunts to shoot at. I recommend the damage boost upgrade. Also remember that Drones also drop Plasma Pistols as you will run out of ammo. There are pretty much Suicide Grunts everywhere in this mission. It will take a couple playthroughs at least, but goes fairly quickly considering you have to get 100 kills!
D-5a
Is This Yours?
Kill 20 Suicide Grunts with Incendiary Grenades
Very Easy--Fast. Suicide Grunts will only come at you from the top left barrier near the start of the mission unfortunately, so you'll need to capitalize on the Suicide Grunts here. Once again, it's very helpful to throw Incendiary Grenades right next to the barrier to spawning Covenant automatically die in the flames. You start with 3 Incendiary Grenades, and there are 3 more in a grenade chest straight south of where you start, opposite the Elephant that was unloading the troops. You could get up to 6 or more each time through using all the grenades.
D-5b
Border Patrol
Kill 100 Covenant with a Machine Gun Turret
Very Easy--Very Fast. This is great fun, you have a MG Turret near the top, and one near the bottom. Just get on the gun and blast away! You should be able to do this in about 2 playthroughs.
D-5c
Hammer to a Gunfight
Kill 10 Brute Chieftains with a Magnum
Very Easy--Slow. There are only two Brute Chieftains per playthrough, and they both come from the north-west when defending the second group of escaping survivors. Chieftains go down easily, although I did have a damage upgrade equipped. With the damage upgrade Chieftains only took about 4 Magnum shots each. Once you kill the second Chieftain, the mission is almost over... and to get the next you you have to replay the whole mission back up to that point. Update!! I just got 3 Chieftains on my re-run of this achievement to unglitch it. I got two up the left side, and one more came from the bottom right near the second drop-ship!
E-1a
Blind Spot
Kill 10 Drones with a Wraith
Easy--Medium. There is only one Wraith in the mission, about halfway through. You need to either steal it with Invisibility on or just hijack it with Invisibility on. The only Drones you can get with the Wraith fly up out of the center hole in the map. -- Credit to Chucklestyle: you should be able to bait towards the wraith a group of 6 drones that fly out of the center hole, and if you avoid the Drones near mission start, you can get some of them as well. Should only take two runs through!
E-1b
Let It Rain!
Kill 20 Stealth Elites with SMGs
Easy--Medium. There are a lot of Stealth Elites in this mission, and you start with SMGs. I didn't find any other SMG ammo through the mission though, and I recommend you use the damage upgrade on the loadout screen. There are 2 Stealth Elites up the left side at the start, 2 more up the middle path, 2 more where the Wraith is(check the sides of the Wraith area), and at least 2 more at the final area. Should take at least 3 playthroughs.
E-1c
Come out of the Shade
Destroy 10 Stealth Elites with a Shade Turret
Hard--Slow. This one is very annoying, as you have to lead the Stealth Elites up to the Shade Turrets, and then shoot them before they run away. I had success getting at least one Stealth Elite each time using the Shade Turret just south of the Wraith, and at least two more Stealth Elites in the final area, using the closest Shade Turret. You can sit in that final Shade Turret and snipe the red squares off the screen. Just go by the map, and aim and shoot in the direction, and you should see your score go up when you get a hit. -- Credit to Chucklestyle, if this works as well as he said, it's a fantastic find! "You can bait the stealths and as long as you're not facing them they should follow you all around the level. I would head left from start and let the first one kill my team, then lure him up to the first turret. Make your way up to the 2nd turret, jump in it and waste everything with the turret, then you can lure at least a few more to this turret.
E-2a
Light at the End of the Tunnel
Kill 20 Grunt Majors with a Focus Rifle
Very Easy--Fast. Work on the Elite Majors Assault Op first, the others secondary. You start with a Focus Rifle, and there is unlimited ammo for it in a cache on the right side of the pathway. I recommend using the bonus damage upgrade to get the fastest possible kills. There are quite a few white Grunt Majors, and you should be able to get this in one playthrough.
E-2b
Scorched Earth
Kill 10 Elite Majors using Incendiary Grenades
Easy--Slow. Excellent improvement suggested by qG Lecca!! : 'Pick up the Stun ability next to the plasma repeater locker on the left a bit down from where you start. Stun them, aim your grenade on them and voila. 3 kills every time.'
The Elite Majors only show up close to the end of the mission, and you have only 3 Incendiary Grenades to start with. I wasn't able to find any other Incendiary Grenades either unfortunately. If you're very accurate, you could probably do this in 4 playthroughs.
E-2c
Fight Plasma with Plasma
Kill 100 Grunts with a Plasma Pistol
Very Easy--Slow. Work on the Elite Majors Assault Op first, the others secondary. The first Grunts will drop Plasma Pistols, and you can just keep killing grunts from then on easily. It will take a couple playthroughs at least though. I highly recommend the damage boost upgrade.
E-3a
All Charged Up
Kill 30 Jackals with a Plasma Pistol
Easy--Slow. Go north, stealth, kill a grunt, take his Plasma Pistol, and then proceed to use it against all the Jackals you can find. There will be quite a few, I'm guessing at least 20 Jackals per playthrough, however this just takes a long time to do.
E-3b
Dynamite Fishing
Kill 50 Grunt Majors with Grenades
Easy--Slow. You start with some grenades, and just run around picking up grenades and whenever you see a white Grunt Major use a grenade on him. You'll get this eventually around when you get the Jackal Assault Op.
E-3c
Stick Around!
Kill 100 Covenant with a Needler
Easy--Slow. Kill a Jackal, take his Needler, then Needle every enemy that isn't a Grunt Major or a Jackal, as you can work on all 3 Assault Ops at one time.
E-4a
Ghost Blaster
Destroy 5 Ghosts using a Plasma Pistol
Very Easy--Fast. There is a very very easy way of doing this. You start the mission with a Plasma Pistol and there is a parked Ghost straight north from the start. Just run up there, and overcharge the Ghost 3 times, die, and repeat 5 more times!
E-4b
Plasma Transfusion
Destroy 10 Shade Turrets with a Ghost
Easy--Medium. There is a Ghost straight up from the start, and there are at least 3 Shade Turrets you can take out with your Ghost during the mission. Just repeat several times and you'll get this quickly.
E-4c
Road Warrior
Kill 50 Covenant with a Ghost
Very Easy--Fast. Take the Ghost from the beginning of the mission and just kill everything with it. Very easy. You probably won't get 50 in one playthrough, but 2 should do it! Just watch out for Wraith shots.
E-5a
Rodent Removal
Kill 10 Jackals
Very Easy--Very Fast. Do not worry about this one, you'll get it at the same time as you kill Jackals with Brute Shot.
E-5b
Exterminator
Kill 25 Elites with an Assault Rifle
Easy--Fast. There is an Assault Rifle crate on the left side of the area. There are about 8 Elites that come through the mission, so you'll have to replay it about 5 times assuming you get all the Elites with an Assault Rifle.
E-5c
Perosus Latrunculus Exterminatus
Kill 20 Jackals with a Brute Shot
Very Easy--Fast. If you want to do this one extra fast, simple start the mission, take out the Jackals facing you with the Brute Shot, and then die, and restart.
F-1a
Ballistic Engineering
Destroy 5 Shade Turrets with a Magnum
Easy--Fast. I recommend the damage booster for this one. Use one grenade on the turrets, and then finish off with the Magnum. There are at least 4 Shade Turrets scattered around the area, and you could get this easily in two playthroughs. There is no more Magnum ammo though, so watch your supply.
F-1b
Plastered Purple
Kill 20 Elites with Frag Grenades
Normal--Slow. You start with 3 Frag Grenades, and that's it. You'll just need to be very accurate with the Elites, as I found the Frags missing often and the Elites also running away from them. Die and restart if this is your last Assault Op after you use your third Frag Grenade, and be careful you don't accidentally use your Frags instead of Plasmas!
F-1c
Carpet Bombing
Kill 60 Covenant with a Brute Shot
Very Easy--Fast. I recommend the damage booster so you can one-shot Brutes with the Brute Shot. Otherwise they are two shots. There happens to be unlimited Covenant and unlimited Brute Shot spawns in this mission. On the top left are of the map, where the Jump-pack Brute flies in, you can kill him and take his Brute Shot, and just keep killing Covenant and spawn killing the Brute for more ammo. Works great.
F-2a
Mauled to Death
Destroy 10 Ghosts with a Grizzly Tank
Very Easy--Medium. You start in a Grizzly! There are only about 3-4 ghosts per playthrough, and they are NO match for a Grizzly. Enjoy this mission. Just watch out for the Mega-turret shots as they can damage your Grizzly quite fast.
F-2b
Mine Field
Kill 20 Suicide Grunts with a Scorpion Tank
Easy--Slow. You start in a Grizzly! Jump out and get in the Scorpion just a bit farther up. There are not many Suicide Grunts in this mission, maybe a total of 8, and keeping the Scorpion tank alive can be challenging. Just be very careful about the Mega-Turret shots, Ghosts, and Wraiths and you should manage. It takes a while though. I highly recommend the damage boost upgrade to keep your Scorpion safer through offense! (updated starting tank thanks to | LUNCHTREY I )
F-2c
Beyond the Grave
Kill 60 Covenant with a Ghost
Easy--Medium. Quite fun. Head north until you see a Ghost, hijack it, and then melt everything with Plasma! Ghosts aren't invincible so use with care though, stay out of range, and do NOT get hit by the Mega-Turret shots.
F-3a
Voodoo Doll
Kill 10 Jackals with a Needler
Easy--Fast. You start with a Needler, and there are plenty of Jackals near the start. If necessary a second playthrough should easily get you this Assault Op.
F-3b
Puncture Burn
Kill 30 Grunts with a Plasma Repeater
Very Easy--Fast. You start with a Repeater--just use it on any Grunts you see, and you should have this one easily in two playthroughs. You could always restart after clearing out the first Grunts also.
F-3c
Explosive Arsenal
Kill 60 Elites with Frag Grenades
Hard--Very Slow. This is a stupid Assault Op. You start with 3 Frag Grenades, and there are no more. What I did was load up the mission, run straight for the first Elite ignoring all other Covenant, Frag him, if successful, run straight to the 2nd Elite who is further north and east, Frag him, if successful run to the last starting Elite who is at the far east barrier. As soon as I threw all 3 Frags and got my kills, I would restart the mission and repeat. It does count. Takes a minimum of 20 restarts, figure on closer to 40-50 restarts though because of grenade aiming and Elites moving.
F-4a
Great Balls of Plasma
Kill 10 Elites with a Shade Turret
Easy--Very Fast. The trick for this is to stealth and take over the Shade Turret at the far west shield generator, and then just camp in it shooting everything that comes.
F-4b
Slugger
Kill 20 Stealth Elites with a Melee Attack
Easy--Fast. I highly recommend the damage upgrade, because then the Stealth Elites are only two melees. There are a lot of them, at least 10 per playthrough, so just go through and melee them all. Two playthroughs should easily do it.
F-4c
Bug Fixer
Kill 80 Drones with a Plasma Pistol
Normal--Medium. My estimate on the total number of Drones for one playthrough is close to 30. They spawn out of the holes next to each path, and usually more will spawn after you complete an objective and then repass an area that you previously cleared. The best place for Drone killing is the shield generator on the right side, as a stream of about 12 Drones attacks at that objective. Just run around the paths and 3-4 Drones will spawn at a time. Then complete some objectives, more will spawn, etc.
F-5a
Rain of Pain
Kill 20 Elites with a SMG
Easy--Medium. Go for the Suicide Grunt Assault Op first! I highly recommend damage upgrade for this Assault Op. After finishing with the Suicide Grunts, go back to the start, gun the two Elite Majors down with your SMG, and immediately restart. Way faster than going through the mission!
F-5b
Return to Sender
Kill 20 Suicide Grunts with Plasma Grenades
Easy--Very Slow. Suicide Grunts are few and far between on this mission unfortunately. There might be a total of 5-6 per mission, so you will have to make multiple playthroughs. Fortunately there are LOTS of Plasma Grenades lying around. Take a Focus Rifle, unlimited ammo from the cache, and just gun down everything that isn't a Suicide Grunt.
F-5c
Laser Surgery
Kill 40 Elites with a Focus Rifle
Easy--Slow. Go for the Suicide Grunt Assault Op first! I highly recommend damage upgrade for this Assault Op. After finishing with the Suicide Grunts, go back to the start, run across the bridge, activate Speed Armor Ability as soon as you can, race to the Focus Rifle cache just on the left side of the big center hole, grab a Focus Rifle, gun down the two Elite Majors, and restart level. Repeat 20 times or fewer depending how many you got while going for Suicide Grunts. Way faster than going through the mission!
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06 Jun 2014 23:27
75 Comments
This guide is super useful.
Here's a few extra pointers I've got for E-1, if they'll help:
E-1a: the drones are the flying things (I thought it wanted grunts and got angry and thought I wasn't getting credit, ha). Follow the path, killing everything up to the wraith, clear the area with the wraith and get out of it and head straight south, then a little east. Near the grenades there, at the opening, a group of 6 drones should fly up. Bait them back towards the wraith and waste 'em. Two runs tops, you can even try to avoid killing the first group of drones on the main path before you get to the wraith if you want but it's not necessary.
E-1c: You can bait the stealths and as long as you're not facing them they should follow you all around the level. I would head left from start and let the first one kill my team, then lure him up to the first turret. Make your way up to the 2nd turret, jump in it and waste everything with the turret, then you can lure at least a few more to this turret. Alt you can just re-kill the first stealth and restart. Easy.
Here's a few extra pointers I've got for E-1, if they'll help:
E-1a: the drones are the flying things (I thought it wanted grunts and got angry and thought I wasn't getting credit, ha). Follow the path, killing everything up to the wraith, clear the area with the wraith and get out of it and head straight south, then a little east. Near the grenades there, at the opening, a group of 6 drones should fly up. Bait them back towards the wraith and waste 'em. Two runs tops, you can even try to avoid killing the first group of drones on the main path before you get to the wraith if you want but it's not necessary.
E-1c: You can bait the stealths and as long as you're not facing them they should follow you all around the level. I would head left from start and let the first one kill my team, then lure him up to the first turret. Make your way up to the 2nd turret, jump in it and waste everything with the turret, then you can lure at least a few more to this turret. Alt you can just re-kill the first stealth and restart. Easy.
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By Chucklestyle on 25 Dec 2014 00:19
Thanks! And I added clarification, I can see how that could be confusing if you just aren't thinking about it 
I really enjoyed writing this up and it helped me when I had to do it all again for my 360 glitched save. lol! The Grizzly is simply ridiculously powerful. Wish it was in the Halo campaigns.............................. 
I really enjoyed writing this up and it helped me when I had to do it all again for my 360 glitched save. lol! The Grizzly is simply ridiculously powerful. Wish it was in the Halo campaigns.............................. 
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By Shadow 00 Fox on 18 Jun 2014 04:04
For C-5c "Special Delivery" the drones usually tend to go up where the engenieer is working, so wait until they all gather up and start throw the granades. If you kill that early brute, you get 1 more plus 3 in the left so is not that hard, it just take so many replays.
PD: Awesome guide, I was doing this by myself until I found this in Operation C. Great great work.
PD: Awesome guide, I was doing this by myself until I found this in Operation C. Great great work.
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By Luka Meraki on 19 Jun 2014 23:48
Hi, thanks! Curious, did you read my C-5c solution? Because, I think I did say exactly what you said.... 
Curious, did you read my C-5c solution? Because, I think I did say exactly what you said.... 
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By Shadow 00 Fox on 20 Jun 2014 16:35
The Jackal one on D-4 is fucking bullshit
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By DeSoto23 on 22 Jun 2014 17:48
It's terrible, possibly the worst one. I enjoyed playing this game so for D-4 I just tried to relax and see how efficiently I could exterminate the Covies in D-4, and then take a run at the Jackals, aiming for a high score every time. That helped make it not so boring. You can get some amazing kill streaks going on D-4. Don't forget to use a damage upgrade though! If you think about the score with Jackals as a bonus, it'll finish before you know it.
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By Shadow 00 Fox on 22 Jun 2014 20:19
Thanks for this.
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By Nefarious Ant on 01 Jul 2014 17:01
Welcome!! Enjoy!
Enjoy!
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By Shadow 00 Fox on 01 Jul 2014 19:12
Fantastic guide man!! For anyone wondering, the most difficult ones for me were-
D-4b
Punctured Phalanx
&
D-5c
Hammer to a Gunfight
Those took FOREVER!!
D-4b
Punctured Phalanx
&
D-5c
Hammer to a Gunfight
Those took FOREVER!!
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By South Park TFBW on 10 Jul 2014 05:51
Wow man, this looks like an awesome solution 
This is going to be very useful while going through every level again and again. 
This is going to be very useful while going through every level again and again. 
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By The Fury I84I on 26 Jul 2014 06:13
For C3, it was kind of a crapshoot as to whether or not the ambush would happen, so on a lot of runs elites would be scarce. To compensate I spend the 800xp on a damage boost to get more mileage out of my magnum, then instead of completing the mission I would let time run out and retry to keep the damage booster going. Once I completed all assault ops I completed the mission to lock it in.
Also worth noting that when going for the elite minors that the needler counts as a pistol, so I would scavenge one so I could save my magnum for the elite majors.
Also worth noting that when going for the elite minors that the needler counts as a pistol, so I would scavenge one so I could save my magnum for the elite majors.
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By Chucklestyle on 27 Jul 2014 23:28
I've updated both Extra Credit solutions to reflect your tips.. the Needler tip especially, and I completely forgot to put the tip about restarting/deliberately failing missions to keep your special mission boosts. Thanks for reminding! About C-5c, you've pretty much described exactly how I said it in the solution. I'm very impressed it only took 6 runs though! That's about 2 drone kills for every plasma, nice! I've edited the number of playthroughs to reflect that.
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By Shadow 00 Fox on 28 Jul 2014 07:53
How do you upgrade your magnum in D-5?? The only options that I get are Sniper, Spartan Laser, and Rocket Launcher...
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By ClaytThaGreat on 11 Aug 2014 15:21
^Nevermind lol. I'm an idiot.
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By ClaytThaGreat on 11 Aug 2014 15:35
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By Shadow 00 Fox on 11 Aug 2014 17:06
Great solution! It was very helpful.
I also highly recommend getting the damage boost upgrade when going for these because it makes them much less annoying and you get the XP you spend back when you complete the challenges for that level.
I also highly recommend getting the damage boost upgrade when going for these because it makes them much less annoying and you get the XP you spend back when you complete the challenges for that level.
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By Lockie on 16 Aug 2014 09:38
I had 20k XP before I started grinding out the ones I was missing - definitely pay the 800XP for damage boost as it makes life a helluva lot easier.
I have 71 completed - 19 to go...
I have 71 completed - 19 to go...
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By S P 4 C E Y on 19 Aug 2014 09:26
I might add to the solution the easy way to gets lots of XP... replaying the first mission over and over getting a gold gives you almost 1k each time I think it was, and it's really fast.
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By Shadow 00 Fox on 19 Aug 2014 21:16
I'm now on 89/90 but only registers 87/90 as the first mission has decided to glitch itself despite me not having played it since day one...
It has better unlock once I kill those bastard jackals. I may throw my Box out a window otherwise.
It has better unlock once I kill those bastard jackals. I may throw my Box out a window otherwise.
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By S P 4 C E Y on 20 Aug 2014 09:40
Fortunately for you!! People have already found the easy way to unglitch your problem instead of redoing everything like I did!!! (read the end of my solution)
(read the end of my solution)
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By Shadow 00 Fox on 20 Aug 2014 17:46
One of the best, if not THE best, solutions on the site. Amazing work, man.
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By CovetousCash64 on 30 Aug 2014 01:07
Wow, thanks!
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By Shadow 00 Fox on 30 Aug 2014 06:26
I used mathguy42 s solution to unglitch, having 89. As I restarted my internet there were 13 horrible, painful seconds as I stared at my new total, 1/90. And then it popped! Huge, giant thumbs up for this guide and the glitch solution!
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By Lambstein on 30 Aug 2014 12:55
I tried the method...I did the Ops for A but nothing. It seems to have wiped everything out. Am I supposed to do it all over again?
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By JLogan27 on 31 Aug 2014 22:26
Which method did you use? And, have you restarted the game making sure it gets it's info from the cloud?
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By Shadow 00 Fox on 31 Aug 2014 23:03
I restarted. It asked me if I wanted my save from the console or the cloud. I chose cloud...all my previous info was there but still had 1000/3 for the 1st op and 33/20 for the 2nd. Oddly enough, I was 37/50 in the 3rd op but it updated to 50/50 on that one.
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By JLogan27 on 01 Sep 2014 13:25
Try method #2.... should work! Just follow it Exactly.
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By Shadow 00 Fox on 01 Sep 2014 17:43
Well, TA says I have the achievement so I guess it worked! Never saw it pop, though.
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By JLogan27 on 02 Sep 2014 14:59
I've had that happen with a few Xbox One things...
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By Shadow 00 Fox on 02 Sep 2014 16:11
E2-B. There is a stun blast armor ability in the left middle of the map that helped me greatly with this one. They are very hard to hit otherwise without killing your engineer.
Great guide!
Great guide!
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By BLYAST on 03 Sep 2014 22:52
Im sitting at 87/90 with all special ops complete. Some in A-1 and A-2 say 38/20 or 138/2. Should I use xbox one fix #2 to try and see if the achievement will pop? Do I need to remember which ones are saying that and redo those three? Thanks for your help!
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By phrozan on 08 Sep 2014 20:07
Go with Fix #2, however, first!! Go through all your Assault Ops until you find the ones that are glitched: you can easily tell because it'll say how many are completed for each mission. Go through, find all 3 that are glitched, and if no others than the first mission or two, do the Fix. If there are some other random ones, see if you can complete them first. Let me know which ones are glitched for you... 
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By Shadow 00 Fox on 08 Sep 2014 21:22
Yes, go for it! A-2 glitching is a bit unusual, but fortunately that's easy enough, only the second mission.
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By Shadow 00 Fox on 09 Sep 2014 05:02
Sounds good I will post my results. I still have to finish a coop mission with two ppl so I may do that first just so I don't lose that progress for some crazy reason. Thank you
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By phrozan on 09 Sep 2014 11:47
Yes. I might remove Fix #1, as I think it does more harm than good. With Fix #2, it should be impossible to lose any information, since it takes advantage of the Xbox One's most recent save abilities.
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By Shadow 00 Fox on 09 Sep 2014 16:41
Got it thanks Shadow!
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By phrozan on 09 Sep 2014 19:31
Excellent!!
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By Shadow 00 Fox on 09 Sep 2014 20:41
Ty for the solution - most helpful along the way, not to mention the Xbox one fix as I may have snapped when mine was glitched out as well. Solution went very smooth and achievement popped as soon as I re-launched the game.
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By Fatal Infusion on 29 Sep 2014 03:38
Terrific!
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By Shadow 00 Fox on 27 Nov 2014 20:11
Excellent guide, my friend. Helped me big-time on a couple of the challenges.
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By Boots Orion on 30 Nov 2014 00:12
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By Shadow 00 Fox on 30 Nov 2014 08:13
Hi folks, I just updated this solution in very obvious ways--can you let me know if the update makes sense or not?
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By Shadow 00 Fox on 15 Dec 2014 20:25
Spartan Assault: Update needed: Kill 50 Grunt Majors with Grenades
Normal--Very Slow. Another annoying one that requires restarts. The only Grunt Minors on the map are around the Gold Elites at the top right of the map.
Description mentions Majors but your guide points to Minors, Also may help to state what color the majors are. Thanks
Normal--Very Slow. Another annoying one that requires restarts. The only Grunt Minors on the map are around the Gold Elites at the top right of the map.
Description mentions Majors but your guide points to Minors, Also may help to state what color the majors are. Thanks
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By CRT JEDIMARK on 17 Dec 2014 04:47
Updated... thanks!
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By Shadow 00 Fox on 17 Dec 2014 08:51
Seems like they've patched in a compromise for this. The achievement unlocked for me today at 89/90 ops completed; the counter for the third assault op had glitched, and was currently at 48/3.
I wasn't looking forward to having to try the workaround, as I had got the game via GwG, and couldn't launch it while offline. Thankfully I didn't need to. \o/
I wasn't looking forward to having to try the workaround, as I had got the game via GwG, and couldn't launch it while offline. Thankfully I didn't need to. \o/
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By peeveen on 27 Dec 2014 15:48
Good tips Chucklestyle and peeveen!
I'll try to add appropriately with credit.
Looks like I should add a quick enemies description just to make sure no one's too unclear.
Question for Chucklestyle, are you sure those six drones weren't the same as the 6 drones that fly up at the start? I found that I would get drones near the start, and those may be the ones I would shoot at. If there are indeed an additional six you can get to spawn after reaching the wraith, that would help quite a bit.
peeveen: NICE!! Did you notice whether you had an update for H: SA? I'm not sure if they fixed on the server side finally, that would be great news!
I'll try to add appropriately with credit.
Looks like I should add a quick enemies description just to make sure no one's too unclear.
Question for Chucklestyle, are you sure those six drones weren't the same as the 6 drones that fly up at the start? I found that I would get drones near the start, and those may be the ones I would shoot at. If there are indeed an additional six you can get to spawn after reaching the wraith, that would help quite a bit.
peeveen: NICE!! Did you notice whether you had an update for H: SA? I'm not sure if they fixed on the server side finally, that would be great news!
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By Shadow 00 Fox on 28 Dec 2014 08:50
I did C-5 using your method and it only took 5 attempts doing it as shown: playing
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By Games Master on 11 Feb 2015 13:00
Do you recommend I change the number downwards? For me it took the 6+ possibly as I was experimenting, maybe if you know how it goes faster? :-)
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By Shadow 00 Fox on 11 Feb 2015 18:07
In the clip I got 11? So around 5 attempts.
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By Games Master on 13 Feb 2015 22:10
I'm a little puzzled(I wasn't able to load the clip for some reason). You say you got 11, but the Op needs 50 to be completed, right?
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By Shadow 00 Fox on 14 Feb 2015 07:41
Yeh... so you get the 11 then die. Repeat 4 more times. It not that important though lol
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By Games Master on 14 Feb 2015 12:40
Ahhhh
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By Shadow 00 Fox on 14 Feb 2015 17:32
To get the enemies on mission C-3 to constantly spawn, you need to destroy 4 of the wraiths and then run to the end of the level, enemies including the Elite Majors will come pouring through the light wall. Hope this helps anyone who see's this.
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By Prestd on 24 Mar 2015 23:08
And clarification, is that any 4 wraiths, or the first 4 wraiths, which wraiths? You may have found how to repeat the glitch I found once but couldn't get to repeat.
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By Shadow 00 Fox on 25 Mar 2015 05:24
Excellent! I'll add that, and thanks for updating!!
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By Shadow 00 Fox on 26 Mar 2015 17:12
any advice if mine is still glitched after the update im pretty sad about it
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By Artiaura on 17 Jun 2015 06:08
What exactly is glitched? Your A-1 assault ops I'm guessing? What have you tried so far?
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By Shadow 00 Fox on 17 Jun 2015 06:51
Tip added.
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By Shadow 00 Fox on 12 Jul 2015 18:30
mathguys solution worked for me. Thank you
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By PHARREAL87 on 17 Jan 2016 17:57
Here's a guaranteed way to get e4-c done in one go: when you nab the ghost, go up and to the left to kill the lieutenant who's next to a shade, and a cliff. Drones will keep spawning out of that cliff and you can just sit and farm them for about 30 seconds, and voila! Assault OP complete
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By Smiththedude on 05 Feb 2016 11:27
Question :-) How long did you wait for those Drones(was it possibly your 2nd playthrough and you didn't have to wait long to get enough kills)? In my experience, the Drones from there only spawned a certain number(maybe 20?), it just looked like they kept coming unless you waited long enough. Can you let me know please, then I can add a note to all 3 solutions. :-)
Not sure why it is, I have some memory problems, but I can picture that area of the mission right off. LOL Halo's just too much fun!
Not sure why it is, I have some memory problems, but I can picture that area of the mission right off. LOL Halo's just too much fun!
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By Shadow 00 Fox on 05 Feb 2016 19:02
Pra mim,esta 90/90 porem no contador do Achievement preso em 98% Saco!
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By Willy K Olho on 25 Apr 2020 22:43
Pra mim,esta 90/90 porem no contador do Achievement preso em 98% Saco!
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By Willy K Olho on 25 Apr 2020 22:53
Amazing, detailed guide!! I spent the better half of the year focusing on these... glad to have finally finished! Thanks
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By lordfrogger79 on 08 Oct 2020 18:45
Just completed the game after 7 years of procrastination, and your tips really helped me out a great deal. Thanks.
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By The SCHWARTZ 00 on 19 Apr 2021 04:42
Some of these are very painful where there's 1 or 2 enemies right at the end of the level.
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By taximike on 19 May 2021 19:17
For F-3c (Kill 60 Elites with Frag Grenades), my trick is too shoot at the elite a little so he runs to cover, once they are hidden behind cover, they never ever dodge your grenade, so it is a 3 kill every time you restart :)
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By Icarusael on 08 Aug 2021 01:38
Thanks for the guide.
This has to be one of the grindiest achievements ever. If the game was actually fun then it wouldn't be so annoying to repeat a level 8 times just for a pathetic challenge!
I can understand the hate behind this game now.
This has to be one of the grindiest achievements ever. If the game was actually fun then it wouldn't be so annoying to repeat a level 8 times just for a pathetic challenge!
I can understand the hate behind this game now.
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By Lord Abzolem on 05 Mar 2022 01:55
That's a great tip for F-3c! I don't know if I can add it soon because there's 3 of these solutions, but I hope people do see it!
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By Shadow 00 Fox on 14 Apr 2022 22:20
First off great guide, this REALLY came in handy getting this achievement. Only suggestion I have is for Operation F-2b, maybe clarify the starting tank is Grizzly and the tank further up is the Scorpion. I just skimmed over the description and didn't realize I was in the Grizzly tank and none of kills were counting.
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By I LUNCHTREY I on 17 Jun 2014 21:04
For C-5c, I would start the mission, kill the grunts and grab the plasmas on the left, jump in a shade turret to kill the brute, grab his plasma grenade, then head down by the engineer and hold LT to aim my plasmas at the north opening. I would toss a plasma as soon as the first drone got in its circle, and repeat with the rest of my 4 plasmas. If any drones were still alive I'd gun them, then run left to where the grunts spawn and let them kill me. Retry and repeat. Only took me 5 or 6 runs.
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By Chucklestyle on 28 Jul 2014 00:57
Yes, they are very hard to hit--I thought about using the stun blast, however it's recharge time coupled with not having the sprint boost makes it a little slower than just aiming at one spot where the drones aren't yet, and throwing your plasmas. I found that the drones almost always moved just in time to get hit by the plasma if you throw it where you've seen them go.... a little confusing though.
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By Shadow 00 Fox on 03 Sep 2014 23:58
A-1 Kil 3 grunt minors with frag grenades shows 81/3
A-1 Kill 20 elite minors shows 38/20
A-2 Destroy 2 shade turrets with plasma grenades shows 190/2
All others are completed as it shows 87/90 this is the only thing i think would work. Should i do fix number 2 and then these missions and report back?
A-1 Kill 20 elite minors shows 38/20
A-2 Destroy 2 shade turrets with plasma grenades shows 190/2
All others are completed as it shows 87/90 this is the only thing i think would work. Should i do fix number 2 and then these missions and report back?
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By phrozan on 08 Sep 2014 22:12
I've done it on 5-6 of my runs and its worked every time. I'm not sure if it matters which wraiths you destroy, but I only the destroyed the first 4 that come at you.
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By Prestd on 26 Mar 2015 15:15
Great guide! Was very Helpful! Just wanted to say that with the Scorched Earth OP on E-2. It makes it a hell of a lot easier when you pick up the stun ability. Stun them, aim your grenade on them and voila. 3 kills every time. It's located next to the plasma repeater locker a little bit down from where you start and on your left.
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By qG Lecca on 08 Jul 2015 19:49
User has been removed
TrueAchievements
TrueAchievements
Adding complete list of all Mission Specific Ops(partial credit to (gamertag; me (yes thats his gamertag)
also adding a detail list of enemys (credit to evilgenius76)
grunts - small yellow dudes
suicide grunts - small yellow dudes carrying 2 glowy plasma grebades
grunt majors - small white dudes
jackals - dudes with shields who fire needlers
drones - flying things
elites - the big purple dudes
elite majors - the big reddy coloured dudes who fire focus rifles
stealth elites - the big grey dudes who have invisible camo
Brute Chieftan - the massive reddy/orange dudes who have a big hammer
Vehicles
Scorpion - smallish tank with 1 big barrel
Grizzly - mahoosive tank with 2 big barrels
ghost - small jet bike type covenant vehicle
wraith - covenant version of a tank
Complete list
A-1
Warm up that Pitching Arm
...Kill 3 Grunt Minors with Frag Grenades
Rookie Target Practice
...Kill 20 Elite Minors
Sidearm Slaughter
...Kill 50 Grunt Minors with a Magnum
A-2
A Shady Detonation
...Destroy 2 Shade Turrets with Plasma Grenades
Scorch Mark
...Kill 20 Grunt Minors with a Plasma Pistol
Taste Your Own Medicine!
...Kill 40 Elite Minors with Plasma Repeaters
A-3
Gung Ho!
...Destroy 3 Shade Turrets with a Plasma Pistol 88 XP
Expert Target Practice
...Kill 30 Elite Minors with an Assault Rifle 240 XP
Sentry Post
...Kill 40 Grunt Minors with a Shade Turret 154 XP
A-4
Stick to This!
...Kill 5 Elite Minors with Plasma Grenades 104 XP
Burn Ward
...Kill 30 Grunt Minors with a Plasma Repeater120 XP
Wrath of the Wraith
...Destroy 15 Wraiths with a Wraith 314 XP
A-5
Meatgrinder Mayhem
...Kill 15 Grunt Minors with a Machine Gun Turret 104 XP
Sting Like a Bee
...Destroy 4 Wraiths with a Magnum 128 XP
Stand-Off Shootout
...Kill 100 Covenant with the Shotgun 470 XP
B-1
Wave Breaker
...Kill 20 Suicide Grunts with a Machine Gun Turret 174 XP
Ring of Fire
...Kill 30 Grunt Majors with an Incindiary Grenade 214 XP
Power Punch-Out
...Kill 40 Suicide Grunts with a Melee Attack 254 XP
B-2
Up Close and Personal
...Kill 20 Elite Minors with a Shotgun 210 XP
Chain Reaction
...Kill 50 Suicide Grunts with SMGs 280 XP
Burn Baby Burn!
...Kill 100 Covenant with Incindiary Grenades 494 XP
B-3
Pincushion
...Kill 20 Jackals with a Needler 114 XP
Trigger Happy Demolition
...Destroy 10 Shade Turrets with the Shotgun 150 XP
Catch!
...Kill 50 Grunt Majors using Grenades 290 XP
B-4
Clean-Up on Aisle Epsilon
...Kill 20 Grunt Majors with a Shotgun 170 XP
Plasma Perimeter
...Kill 10 Elite Minors with a Shade Turret 154 XP
Staring Death in the Eyes
...Kill 30 Elite Minors with a Wraith 274 XP
B-5
Head On!
...Destroy 20 Wraiths with a Scorpion 414 XP
Fight Vapor with Fire
...Destroy 30 Ghosts with a Scorpion 514 XP
Back to the Grave
...Destroy 20 Wraiths using a Ghost 414 XP
C-1
Precision Disassembly
...Destroy 4 Shade Turrets with a Focus Rifle 134 XP
Shooting Range
...Kill 50 Covenant using Rifles 310 XP
Plasma Burn
...Kill 40 Covenant with Plasma Grenades 284 XP
C-2
Explosive Apparition
...Destroy 5 Ghosts usign Frag Grenades 194 XP
Moving Target
...Kill 40 Drones with an Assault Rifle 190 XP
Beam of Blight
...Kill 80 Covenant with a Focus Rifle 430 XP
C-3
A New Sheriff in Town
...Kill 20 Elite Minors with Pistols 234 XP
Armed Ambush
...Destroy 10 Wraiths with a Machine Gun Turret 284 XP
Dirty Davis
...Kill 20 Elite Majors using a Magnum 274 XP
C-4
Razorback
...Kill 10 Elite Majors with a Needler 184 XP
Guiding Light
...Kill 20 Stealth Elites with a Focus Rifle 270 XP
Iron Fist
...Kill 20 Stealth Elites with Melee Attacks 284 XP
c-5
Turn Off Their Lights
...Kill 10 Elite Majors with a Focus Rifle 190 XP
Brutal Burnout
...Kill 5 Brute Chieftains with a Shade Turret 184 XP
Special Delivery
...Kill 50 Drones with Plasma Grenades 224 XP
D-1
All in a Day's Work
...Kill 20 Grunt Minors160 XP
Death from Above
...Kill 20 Jump-Pack Brutes with a Brute Shot 340 XP
Premature Detonation
...Kill 50 Suicide Grunts with a Focus Rifle 290 XP
D-2
Who's Laughing Now!?
...Kill 10 Jackals with an Assault Rifle 150 XP
Grapple Hook
...Kill 20 Jump-pack Brutes with a Needler 324 XP
Anvil
...Kill 5 Brute Chieftains with a Brute Shot 200 XP
Bear Hug
...Destroy 10 Wraiths with a Grizzly Tank 304 XP
Haunting
...Kill 20 Grunt Minors with a Ghost 184 XP
Drive By
...Destroy 20 Wraiths with SMGs 450 XP
D-4
Molten Rain
...Kill 10 Elite Majors with a Plasma Repeater 210 XP
Punctured Phalanx
...Kill 20 Jackals with SMGs 170 XP
Blast of Glory
...Kill 100 Suicide Grunts with a Plasma Pistol 540 XP
D-5
Is This Yours?
...Kill 20 Suicide Grunts with Incendiary Grenades 224 XP
Border Patrol
...Kill 100 Covenant with a Machine Gun Turret 544 XP
Hammer to a Gunfight
...Kill 10 Brute Chieftains with a Magnum 254 XP
E-1
Blind Spot
...Kill 10 Drones with a Wraith 194 XP
Let it Rain!
...Kill 20 Stealth Elites with SMGs 320 XP
Come Out of the Shade
...Destroy 10 Stealth Elites with a Shade Turret 254 XP
E-2
Light at the End of the Tunnel
...Kill 20 Grunt Majors with a Focus Rifle 240 XP
Scorched Earth
...Kill 10 Elite Majors using Incendiary Grenades 254 XP
Fight Plasma with Plasma
...Kill 100 Grunts with a Plasma Pistol 370 XP
E-3
All Charged Up
...Kill 30 Jackals with a Plasma Pistol 230 XP
Dynamite Fishing
...Kill 50 Grunt Majors with Grenades 370 XP
Stick Around!
...Kill 100 Covenant with a Needler 554 XP
E-4
Ghost Blaster
...Destroy 5 Ghosts using a Plasma Pistol 240 XP
Plasma Transfusion
...Destroy 10 Shade Turrets with a Ghost 234 XP
Road Warrior
...Kill 50 Covenant with a Ghost 374 XP
E-5
Rodent Removal
...Kill 10 Jackals170 XP
Exterminator
...Kill 25 Elites with a Assault Rifle 310 XP
Perosus Latrunculus Exterminatus
...Kill 20 Jackals with a Brute Shot 210 XP
F-1
Ballistic Engineering
...destroy 5 turrets with a magnum
Plastered Purple
...kill 20 elites with frag grenades
carpet bombing
...Kill 60 covenant with a brute shot
f-2
Mauled to death
...destroy 10 ghosts with a grizzly tank
Mine field
...kill 20 suicide grunts with a scorpion tank
beyond the grave
...kill 60 covenant with a ghost
f-3
VoodooDoll
...kill 10 jackels with a needler
puncture burn
...kill 30 grunts with a plasma repeater
Explosive Arsenal
...kill 60 elites with a frag grenade
F-4
Great Balls of Fire
...kill 10 elites with a shade turret
Slugger
...Kill 20 elite stealths with a mele attack
Bug fixer
...Kill 80 drones with a plasma pistol
F-5
Rain of Pain
...kill 20 elites with an smg
return to sender
...Kill 20 suicide grunts with plasma grenades
laser surgery
...kill 40 elites with a focus rifle
also adding a detail list of enemys (credit to evilgenius76)
grunts - small yellow dudes
suicide grunts - small yellow dudes carrying 2 glowy plasma grebades
grunt majors - small white dudes
jackals - dudes with shields who fire needlers
drones - flying things
elites - the big purple dudes
elite majors - the big reddy coloured dudes who fire focus rifles
stealth elites - the big grey dudes who have invisible camo
Brute Chieftan - the massive reddy/orange dudes who have a big hammer
Vehicles
Scorpion - smallish tank with 1 big barrel
Grizzly - mahoosive tank with 2 big barrels
ghost - small jet bike type covenant vehicle
wraith - covenant version of a tank
Complete list
A-1
Warm up that Pitching Arm
...Kill 3 Grunt Minors with Frag Grenades
Rookie Target Practice
...Kill 20 Elite Minors
Sidearm Slaughter
...Kill 50 Grunt Minors with a Magnum
A-2
A Shady Detonation
...Destroy 2 Shade Turrets with Plasma Grenades
Scorch Mark
...Kill 20 Grunt Minors with a Plasma Pistol
Taste Your Own Medicine!
...Kill 40 Elite Minors with Plasma Repeaters
A-3
Gung Ho!
...Destroy 3 Shade Turrets with a Plasma Pistol 88 XP
Expert Target Practice
...Kill 30 Elite Minors with an Assault Rifle 240 XP
Sentry Post
...Kill 40 Grunt Minors with a Shade Turret 154 XP
A-4
Stick to This!
...Kill 5 Elite Minors with Plasma Grenades 104 XP
Burn Ward
...Kill 30 Grunt Minors with a Plasma Repeater120 XP
Wrath of the Wraith
...Destroy 15 Wraiths with a Wraith 314 XP
A-5
Meatgrinder Mayhem
...Kill 15 Grunt Minors with a Machine Gun Turret 104 XP
Sting Like a Bee
...Destroy 4 Wraiths with a Magnum 128 XP
Stand-Off Shootout
...Kill 100 Covenant with the Shotgun 470 XP
B-1
Wave Breaker
...Kill 20 Suicide Grunts with a Machine Gun Turret 174 XP
Ring of Fire
...Kill 30 Grunt Majors with an Incindiary Grenade 214 XP
Power Punch-Out
...Kill 40 Suicide Grunts with a Melee Attack 254 XP
B-2
Up Close and Personal
...Kill 20 Elite Minors with a Shotgun 210 XP
Chain Reaction
...Kill 50 Suicide Grunts with SMGs 280 XP
Burn Baby Burn!
...Kill 100 Covenant with Incindiary Grenades 494 XP
B-3
Pincushion
...Kill 20 Jackals with a Needler 114 XP
Trigger Happy Demolition
...Destroy 10 Shade Turrets with the Shotgun 150 XP
Catch!
...Kill 50 Grunt Majors using Grenades 290 XP
B-4
Clean-Up on Aisle Epsilon
...Kill 20 Grunt Majors with a Shotgun 170 XP
Plasma Perimeter
...Kill 10 Elite Minors with a Shade Turret 154 XP
Staring Death in the Eyes
...Kill 30 Elite Minors with a Wraith 274 XP
B-5
Head On!
...Destroy 20 Wraiths with a Scorpion 414 XP
Fight Vapor with Fire
...Destroy 30 Ghosts with a Scorpion 514 XP
Back to the Grave
...Destroy 20 Wraiths using a Ghost 414 XP
C-1
Precision Disassembly
...Destroy 4 Shade Turrets with a Focus Rifle 134 XP
Shooting Range
...Kill 50 Covenant using Rifles 310 XP
Plasma Burn
...Kill 40 Covenant with Plasma Grenades 284 XP
C-2
Explosive Apparition
...Destroy 5 Ghosts usign Frag Grenades 194 XP
Moving Target
...Kill 40 Drones with an Assault Rifle 190 XP
Beam of Blight
...Kill 80 Covenant with a Focus Rifle 430 XP
C-3
A New Sheriff in Town
...Kill 20 Elite Minors with Pistols 234 XP
Armed Ambush
...Destroy 10 Wraiths with a Machine Gun Turret 284 XP
Dirty Davis
...Kill 20 Elite Majors using a Magnum 274 XP
C-4
Razorback
...Kill 10 Elite Majors with a Needler 184 XP
Guiding Light
...Kill 20 Stealth Elites with a Focus Rifle 270 XP
Iron Fist
...Kill 20 Stealth Elites with Melee Attacks 284 XP
c-5
Turn Off Their Lights
...Kill 10 Elite Majors with a Focus Rifle 190 XP
Brutal Burnout
...Kill 5 Brute Chieftains with a Shade Turret 184 XP
Special Delivery
...Kill 50 Drones with Plasma Grenades 224 XP
D-1
All in a Day's Work
...Kill 20 Grunt Minors160 XP
Death from Above
...Kill 20 Jump-Pack Brutes with a Brute Shot 340 XP
Premature Detonation
...Kill 50 Suicide Grunts with a Focus Rifle 290 XP
D-2
Who's Laughing Now!?
...Kill 10 Jackals with an Assault Rifle 150 XP
Grapple Hook
...Kill 20 Jump-pack Brutes with a Needler 324 XP
Anvil
...Kill 5 Brute Chieftains with a Brute Shot 200 XP
Bear Hug
...Destroy 10 Wraiths with a Grizzly Tank 304 XP
Haunting
...Kill 20 Grunt Minors with a Ghost 184 XP
Drive By
...Destroy 20 Wraiths with SMGs 450 XP
D-4
Molten Rain
...Kill 10 Elite Majors with a Plasma Repeater 210 XP
Punctured Phalanx
...Kill 20 Jackals with SMGs 170 XP
Blast of Glory
...Kill 100 Suicide Grunts with a Plasma Pistol 540 XP
D-5
Is This Yours?
...Kill 20 Suicide Grunts with Incendiary Grenades 224 XP
Border Patrol
...Kill 100 Covenant with a Machine Gun Turret 544 XP
Hammer to a Gunfight
...Kill 10 Brute Chieftains with a Magnum 254 XP
E-1
Blind Spot
...Kill 10 Drones with a Wraith 194 XP
Let it Rain!
...Kill 20 Stealth Elites with SMGs 320 XP
Come Out of the Shade
...Destroy 10 Stealth Elites with a Shade Turret 254 XP
E-2
Light at the End of the Tunnel
...Kill 20 Grunt Majors with a Focus Rifle 240 XP
Scorched Earth
...Kill 10 Elite Majors using Incendiary Grenades 254 XP
Fight Plasma with Plasma
...Kill 100 Grunts with a Plasma Pistol 370 XP
E-3
All Charged Up
...Kill 30 Jackals with a Plasma Pistol 230 XP
Dynamite Fishing
...Kill 50 Grunt Majors with Grenades 370 XP
Stick Around!
...Kill 100 Covenant with a Needler 554 XP
E-4
Ghost Blaster
...Destroy 5 Ghosts using a Plasma Pistol 240 XP
Plasma Transfusion
...Destroy 10 Shade Turrets with a Ghost 234 XP
Road Warrior
...Kill 50 Covenant with a Ghost 374 XP
E-5
Rodent Removal
...Kill 10 Jackals170 XP
Exterminator
...Kill 25 Elites with a Assault Rifle 310 XP
Perosus Latrunculus Exterminatus
...Kill 20 Jackals with a Brute Shot 210 XP
F-1
Ballistic Engineering
...destroy 5 turrets with a magnum
Plastered Purple
...kill 20 elites with frag grenades
carpet bombing
...Kill 60 covenant with a brute shot
f-2
Mauled to death
...destroy 10 ghosts with a grizzly tank
Mine field
...kill 20 suicide grunts with a scorpion tank
beyond the grave
...kill 60 covenant with a ghost
f-3
VoodooDoll
...kill 10 jackels with a needler
puncture burn
...kill 30 grunts with a plasma repeater
Explosive Arsenal
...kill 60 elites with a frag grenade
F-4
Great Balls of Fire
...kill 10 elites with a shade turret
Slugger
...Kill 20 elite stealths with a mele attack
Bug fixer
...Kill 80 drones with a plasma pistol
F-5
Rain of Pain
...kill 20 elites with an smg
return to sender
...Kill 20 suicide grunts with plasma grenades
laser surgery
...kill 40 elites with a focus rifle
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34 Comments
D4, 20 jackal kills is just insane, the suicide grunts at the end kill them, you only have a matter of seconds to kill them and then the mission ends. ON TOP OF THAT!!! you are limited in the amount of room to move since the damn elephant is in the way. 343 was not thinking clearly when they came up with this challenge. Please someone post a guide for that part.
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By OwnedByOmar on 12 Jan 2014 00:34
I can´t find a single Brute Chieftain on Mission D-2. What am i doing wrong?
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By Superschrubber on 24 Jan 2014 08:14
This feels like a grind. A lot of work for 30G.
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By Sauer Von Kraut on 30 Dec 2013 18:56
Good Work. Thx a lot...
Any other Question. Is it possible to make one Kill an reload the Level? Or did you lost the progress??
Any other Question. Is it possible to make one Kill an reload the Level? Or did you lost the progress??
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By GodfatherNr1 on 06 Jan 2014 00:08
GodfatherNr1 yes that's what I have been doing. Some of the later challenges are a nightmare like D4, D5, especially E2 where you have to kill 10 red elites with incendiary grenades.
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By StephenM 84 on 06 Jan 2014 18:06
Perfect... Thank you... this would save a lot of time...
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By GodfatherNr1 on 06 Jan 2014 21:14
Ugh, have to kill 20 Jackals with SMGs on D-4... there are only 2 jackals in the mission and they are right at the end... worst/most annoying one I've run into (so far).
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By JORAX on 07 Jan 2014 09:18
...and after 10 runs I have 5 kills. The suicide guys usually end up killing them with explosives :(.
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By JORAX on 07 Jan 2014 09:45
D4 is the worst in game along with f4
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By Lavindathar on 10 Jan 2014 16:13
The glitch won't affect me if I never played this on the phone right?
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By peacemak3r on 14 Jan 2014 02:31
@ Peacemak3r.
No it wont if you have only ever played this on the one then you are fine
No it wont if you have only ever played this on the one then you are fine
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By OliverSudden01 on 15 Jan 2014 00:08
On D4 you want the ability that lets out an electric pulse to stun people. Wait for the suicide grunts to get some separation from the jackals, and then stun everyone. Then just shoot jackals. It still takes forever, but you're more likely to get the kills at least.
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By GoBlueFiddler13 on 15 Jan 2014 05:09
Just to add on what GoBlueFiddler13 said, if you buy the Damage Booster (800 XP) it helps alot you can get 4-5 Jackals at a time, when you killed about 4-5 if your fast you can hit the restart mission, doing this will keep all kills and you get to keep the Damage Booster, did this in 10 mins
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By Chaos Mythology on 21 Jan 2014 21:52
I cant find any chieftans in D5.
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By Pyro Jigamafre on 27 Jan 2014 03:16
@Pyro: Thx a lot for the info! And in D-5 i remember it´s one of the last enemies at the 2nd camp, he´s coming from the left!
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By Superschrubber on 27 Jan 2014 06:29
I need help for the mission Precision Disassembly in C-1 because the kill for the shade turret not count with the sniper riffle ...
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By Skill4h on 28 Jan 2014 23:22
@FURY NOT the SNIPER RIFLE - The Focus Rifle counts (The One with the red beam)
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By GodfatherNr1 on 29 Jan 2014 21:11
Oh sh** thanks, You save me !
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By Skill4h on 29 Jan 2014 22:20
OP, You're missing out jump-pack brutes (relevant for D-1). They're pretty obvious and always use a brute shot.
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By Vr English on 31 Jan 2014 10:21
Thanks Chaos Mythology and GoBlueFiddler13 on the tips for the d-4 challenges.
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By x l Santos on 03 Feb 2014 03:53
I hate D-5, hate hate hate it.
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By dc0dr on 06 Feb 2014 11:31
Trouble w/ mine field f-2. for some reason when I kill suicide grunts w/ the scorpion the kills do not register... please help
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By Chopsticks on 21 Feb 2014 08:30
Chaos, Thanks for the tip on D-4...was hating those f'ing jackals.
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By Webhead2099 on 26 Feb 2014 05:45
e-2 can just roll over and die...so frustrating!
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By Kamera on 28 Feb 2014 16:05
man this is a grind, seems like it should be worth more than 128 TA points.
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By badad117 on 05 Mar 2014 13:00
Any Help for D-5 With the Chief-brutes kills with magnum afther 5 runs i got one WTF !!!! you only got few secs to kill him and he always gets killed bye something else or to many survivors died...this is a nightmare...
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By Magnificent X on 07 Mar 2014 18:58
What am I doing wrong? I can't get a single shade turret destroyed with plasma grenades even though I am blowing them up with plasma grenades. Ugh.
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By hunterIV on 09 Apr 2014 16:00
For u who have problems at F2 You need to switch tank! There are 2 different right where you spawn. This was my last challenge ^^
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By ViaFix on 14 Apr 2014 16:39
For anyone who is struggling on c-3 a new sherriff in town its a magnum challenge even tho it says pistol
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By WeighingBrute on 05 Jun 2014 07:38
E2 is pretty bad the elite majors don't go down with just the incendiary grenade and they dodge them all the time if you do get them down, I think the only ones I've got on them were when I let them run past me and my spartans shot at them and I chucked a grenade to kill it.
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By DeSoto23 on 23 Jun 2014 01:12
Ty for the list.
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By MASTER MARCO H1 on 11 Dec 2022 23:23
@superschrubber he is at the north point of the second set of survivors. Only one in this mission.
I am not liking these challenges..
I am not liking these challenges..
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By Pyro Jigamafre on 27 Jan 2014 02:59
I played the W8P version first. This is the last one I need for the xbox one. But do the challenges not sync with the one???? Shows I have 40 out of 90 on my phone and the arcade version, But the Xbox one only shows I have 17???
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By on 26 Feb 2014 16:41
For anyone struggling with E-2; kill 10 Elite Majors (red elites) with incendiaries, from where you begin the mission, go directly south and you will see 2 Covenant plasma containers (ones that are highly explosive), next to them is a Covenant weapon crate holding Plasma Repeaters, in between both of these is the armour ability that stuns enemies. It will make this a minor task of waiting for the elites to come. You start with 3 incendiaries so use 1 on each whilst they are stunned. Restart mission and repeat.
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By AG Bucky Barnes on 01 May 2014 23:25
ScorchPSO
TrueAchievements
TrueAchievements
24 Dec 2013 03:27
EDIT: According to Mathguy this is now resolved; It should pop when you launch the game; Let me know if it doesnt!
This isn't so much a solution as it is information.
For anybody who has played Spartan Assault on WP8 or W8 this achievement is currently glitched and unobtainable as confirmed by several members on Halo Waypoint Forums.
This is due to the game synching your information across all platforms and it marking all/some of the challenges as completed which means it's physically impossible to get credit for completing all the missions as required by the achievement.
Rest assured though, it seems 343 are aware of this issue and have passed it along to their support teams so hopefully a fix will be put in place for the achievement to unlock correctly over the next few days/weeks.
I will remove this "solution" once the achievement has a confirmed fix.
EDIT: Comment from 343 on the 3rd Jan:
"There is a known issue with the Extra Credit achievement that is under investigation. We know this has been a frustrating process, but we do have a team working on resolving this issue. "
It is being worked on folks; Just a matter of being patient.
This isn't so much a solution as it is information.
For anybody who has played Spartan Assault on WP8 or W8 this achievement is currently glitched and unobtainable as confirmed by several members on Halo Waypoint Forums.
This is due to the game synching your information across all platforms and it marking all/some of the challenges as completed which means it's physically impossible to get credit for completing all the missions as required by the achievement.
Rest assured though, it seems 343 are aware of this issue and have passed it along to their support teams so hopefully a fix will be put in place for the achievement to unlock correctly over the next few days/weeks.
I will remove this "solution" once the achievement has a confirmed fix.
EDIT: Comment from 343 on the 3rd Jan:
"There is a known issue with the Extra Credit achievement that is under investigation. We know this has been a frustrating process, but we do have a team working on resolving this issue. "
It is being worked on folks; Just a matter of being patient.
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24 Dec 2013 03:27
81 Comments
Doctor Arc, have you played 5 co-op missions on X1? Because the X1 version uses the Achievement Progress system, none of the achievements automatically carry over from the other versions. You must redo the requirements of each achievement to increase your progress percentage.
The only semi-exception I know of is 117. You must replay each mission on X1, but you don't have to get Gold again. Just replaying a mission will make the 117 progress go up. Perhaps Dynamic Duo is the same way, but I unlocked that before the 360 version was released.
So my advice is to replay all 5 co-op missions on X1. If you don't unlock Flooded and Dynamic Duo, please let us know your progress percentage on those. Flooded actually has a positive glitch where it will unlock for doing any 5 missions, even with repeats.
The issue with Extra Credit is that there is no way to redo an Assault Op on X1, so you can't make the progress percentage go up if you've already done the Assault Op elsewhere.
The only semi-exception I know of is 117. You must replay each mission on X1, but you don't have to get Gold again. Just replaying a mission will make the 117 progress go up. Perhaps Dynamic Duo is the same way, but I unlocked that before the 360 version was released.
So my advice is to replay all 5 co-op missions on X1. If you don't unlock Flooded and Dynamic Duo, please let us know your progress percentage on those. Flooded actually has a positive glitch where it will unlock for doing any 5 missions, even with repeats.
The issue with Extra Credit is that there is no way to redo an Assault Op on X1, so you can't make the progress percentage go up if you've already done the Assault Op elsewhere.
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By MathGuy42 on 16 Feb 2014 12:00
Here's another hopeful post by bs angel.
Wanted to provide a quick update: We've identified what we believe will be the fix for this issue and are currently working with the Xbox Live team to schedule a Content Update (the Xbox One term for Title Update). We're hoping to release it this month but nothing is final yet. Will let you know once the date is official. :)
Please remember, you can see the general status of Spartan Assault bugs in this thread:
https://forums.halowaypoint.com/yaf_postst235212_Spartan-Ass...
Going to that link shows Please remember, you can see the general status of Spartan Assault bugs in this thread:
https://forums.halowaypoint.com/yaf_postst235212_Spartan-Ass...
Bug: Extra Credit Achievement
Status: Fix identified, working with Xbox Live to schedule release
Description: For players who have completed or made progress with challenges on another device, no progress is being shown, despite challenges being complete.
So this should fix Glitch 1, as I describe here. But no mention of Glitch 2. I'll follow up.Status: Fix identified, working with Xbox Live to schedule release
Description: For players who have completed or made progress with challenges on another device, no progress is being shown, despite challenges being complete.
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By MathGuy42 on 12 Feb 2014 11:56
thanks for the info.
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By Warlord K1ng on 24 Dec 2013 09:18
This is really helpful to know, thanks.
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By olanmills on 24 Dec 2013 12:40
So since I never played it on WP or Win8 then I should be able to 1k it without them fixing this correct? Because it won't sync any data from any other platforms...
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By LifeExpectancy on 24 Dec 2013 17:12
As I understand the situation, it should work for anyone who hasn't played WP8 or Win 8. You could check the Achievements app to make sure. Each Assault Op should show a 1-2% increase in your progress. (Really 1.11%, but the Achievement app only shows integer percents.) You could also check on TA, which gives numbers like 15/90 instead of a percentage.
If I understand this correctly, if someone had 1/90 done on Win 8, then did the rest on X1, their progress would be at 98.89%. So even one Assault Op done on another platform will glitch your achievement.
If I understand this correctly, if someone had 1/90 done on Win 8, then did the rest on X1, their progress would be at 98.89%. So even one Assault Op done on another platform will glitch your achievement.
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By MathGuy42 on 24 Dec 2013 17:24
I don't want to promise but yes I honestly don't see why you would have a problem, the issue comes from not having all the missions to complete, because you're playing fresh you shouldn't have that issue.
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By ScorchPSO on 24 Dec 2013 17:24
Thanks for the heads up. I haven't completed all the challenges on the other versions yet. But right now I've completed a challenge on every version of the game(WP8/W8/XB1) here's to hoping that I get the achievement on all three versions when an patch is created.
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By Caayn Dragon on 24 Dec 2013 19:27
This should be fixed by now. What the hell is taking so long??
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By Danny1498 on 10 Apr 2014 11:08
If I can get the co op done tonight I'll slog out the rest of the assault ops and see if it pops and post back here. Thx fellas.
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By LifeExpectancy on 25 Dec 2013 00:26
Seems like someone was able to unlocks this and only playing xone verison... weather or not its legit i dunno but thanks for the link @mathguy42
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By GrmRpr69 on 25 Dec 2013 03:48
You're welcome. Yeah, the guy who unlocked this doesn't have the Win 8 or WP8 version on his card. Looks legit to me.
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By MathGuy42 on 25 Dec 2013 11:17
Yup confirmed here as well, never played Win8 or WP versions and the achievement popped as soon as I wrapped up my last assop.
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By LifeExpectancy on 25 Dec 2013 17:52
If I play the Xbox one version first will it glitch the wp8 and w8 version when I play those later on?
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By wBRY on 26 Dec 2013 04:58
@YA BILLY, no they won't. You could unlock the achievement on the WP and W8 versions by completing a weekly challenge.
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By Yin on 26 Dec 2013 05:02
I can confirm this Achievement is currently glitched as I have both Halo: Spartan Assault (Win 8) and Halo: Spartan Assault (Xbox One), I have completed Halo: Spartan Assault (Win 8) and completed all Assault Ops in Halo: Spartan Assault (Xbox One) with no Achievement unlocking, I hope 343 Industries simply unlocks the Achievement for those who have all 90 Assault Ops completed and not make us redo them all.
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By NJStalderXB on 28 Dec 2013 07:28
I Played the W8 versión and now I can't get my 100% because of this bull.... 
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By Xx NicH xX on 03 Jan 2014 01:11
I just unlocked this achievement. I have NOT played this on anything but the Xbox One and sorr Puelsay19 but I had no problems with any of the objectives. Everything worked perfect. I have a vid on my youtube channel of me getting it too. www.youtube.com/user/sycobdb (well the user name is Brendan MaNiA now)
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By Sycomaniaa on 03 Jan 2014 11:13
Huzzah!
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By Sauer Von Kraut on 07 Jan 2014 00:49
Has anyone who first played on X1 found out if anything glitches on Win8/Phone yet if playing those after?
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By JORAX on 07 Jan 2014 10:08
Just to add to Revolver Ned's comment: If you play X1 first, then you should only need to play A-5, B-5, etc to get the Finish Mission A, B, etc achievements. That's how it works if you play Win 8 and then WP8, or vice versa.
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By MathGuy42 on 08 Jan 2014 00:19
There is now an official list of SA bugs under investigation. No timeframe given for fixes though.
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By MathGuy42 on 09 Jan 2014 12:25
Just got 90/90 done but no achievement because I had completed one Op before on WP. Hopefully this is fixed in the next week or so.
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By GoBlueFiddler13 on 13 Jan 2014 05:41
Hoping for this fix soon!
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By JohnyLou on 19 Jan 2014 04:13
Oh this sux!!! This is the only achievement I have left!
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By CNote824 on 19 Jan 2014 23:25
I saw my stuff synced and wondered if that would cause issues with completion stats lol...'tis unfortunate but I do hope it doesn't effect me/gets fixed soon. Also for the 360 version which is supposed to come out soon
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By Philmnator on 21 Jan 2014 04:37
This achievement won't unlock for me, I've got 90/90 and done a weekly challenge. Ive only played the Xbox one version as well, any advice?
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By Parish7 on 28 Jan 2014 21:53
Parish7, what is your percentage progress in the Achievements app?
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By MathGuy42 on 28 Jan 2014 22:08
I went on it this morning and its now unlocked, not sure how that's happened.
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By Parish7 on 29 Jan 2014 05:04
Parish7, I have heard of this happening before with various achievements in various games. The X1 achievement system currently has a bug where the achievement progress is 100%, yet it doesn't unlock. This is an OS level bug. From your experience and other reports, the achievement usually unlocks later, but I have not heard of any way to trigger the unlock.
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By MathGuy42 on 29 Jan 2014 11:37
This seems to be the only one that didn't unlock straight away for me. Hopefully the only one as well.
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By Parish7 on 29 Jan 2014 18:17
Uhmm strange. On the Xbox One it refuses to unlock. But on the 360 it unlocked before I even had time to enter a mission >.>
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By Caayn Dragon on 01 Feb 2014 11:00
Hopefully it'll be resolved soon :( It's nice to know they're looking into it though; I appreciate the updates Mathguy; This probably should have been your solution instead :)
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By ScorchPSO on 10 Mar 2014 21:50
^ Good news! It was my first achievement on the 360 version.
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By Xx NicH xX on 01 Feb 2014 18:34
Thanks for the updates MathGuy; Much Appreciated!
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By ScorchPSO on 12 Feb 2014 12:45
FYI, Glitch 2 is also occurring for some 360 users who have not played any other version. While that's frustrating and I wish it didn't happen, hopefully it will make a fix more likely.
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By MathGuy42 on 12 Feb 2014 18:36
I have the WP, X360 and X1 versions. Got achievement on WP and 360. It shows all done in X1 but no achievement. Same glitch seems to be present with the coop missions completed....sigh
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By Doctor Arc on 16 Feb 2014 06:24
Extra Credit is finally fixed! The achievement unlocked as soon as I got to the Main Menu, like it does on 360.
Well, at least for Glitch 1 was fixed. I'm not sure about Glitch 2 (where some Assault Ops can be over-completed, like 100/3 Grunt Grenade kills).
The game was silently updated overnight since I use the Instant-On mode. A friend who does manual updates let me know it had updated. And here's a post announcing the update.
Well, at least for Glitch 1 was fixed. I'm not sure about Glitch 2 (where some Assault Ops can be over-completed, like 100/3 Grunt Grenade kills).
The game was silently updated overnight since I use the Instant-On mode. A friend who does manual updates let me know it had updated. And here's a post announcing the update.
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By MathGuy42 on 19 Feb 2014 12:49
I can confirm MathGuy42's post. There's an update for the game (1GB) which fixes the achievement. Popped once I entered the start menu, just like the 360 version.
Congrats on the completion everyone :)
Congrats on the completion everyone :)
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By Caayn Dragon on 19 Feb 2014 16:10
The patch was 170mb for me.
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By EDDS on 19 Feb 2014 19:27
Cool - time to work on some more ops so I can finish all 4 versions
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By K4rn4ge on 19 Feb 2014 20:10
That's disappointing, Son of Kyuss. I suggest posting your experience here so that 343i knows the second glitch is not yet fixed.
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By MathGuy42 on 19 Feb 2014 20:50
343 has closed the Extra Credit support thread, for reasons given in this last post. They do acknowledge some people are still having trouble. Such a person is asked to start a new thread. Since I'm not personally affected, I don't feel I should be the one to start one.
Feel free to use any of my wording from the first post of the old thread, if that is helpful. After someone has started a thread, I will repost the 4 bullet points I put in that first post.
Feel free to use any of my wording from the first post of the old thread, if that is helpful. After someone has started a thread, I will repost the 4 bullet points I put in that first post.
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By MathGuy42 on 22 Feb 2014 02:28
For those who can't unlock Extra Credit because the A-1 counters are messed up, 343i says, "We are currently investigating this issue and will provide updates as they become available."
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By MathGuy42 on 27 Feb 2014 22:39
New post by 343i. Still investigating.
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By MathGuy42 on 10 Mar 2014 18:27
Well, this is odd. A moderator deleted the post. By hitting Reply, you can see the last 10 posts, even ones that were deleted. So now I see:
Forum Team
Message was deleted by a Moderator.
We are still investigating this issue and will provide updates as they become available.
3 hours ago
Message was deleted by a Moderator.
We are still investigating this issue and will provide updates as they become available.
3 hours ago
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By MathGuy42 on 10 Mar 2014 21:19
I have 60 ops in-game and only 45 in the achievement tracker. So am I screwed?
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By AP E JC on 13 Apr 2014 11:53
Figers crossed a-1 is ok for me. I think i did them in win8
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By AP E JC on 13 Apr 2014 15:13
So, my fear was confirmed and i got 90 challenges and no achievement. I can confirm that if the achievement tracker is not on pair with challenges, it may glitch. I tried everything from reloading, gold star a level and also complete a weekly challenge and no success.
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By AP E JC on 16 Apr 2014 02:22
What percentage do you see in the achievement app? And to confirm, you see 90/90 in the game? This was supposedly fixed in the Feb 19 update. I'm not sure why it's malfunctioning now.
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By MathGuy42 on 16 Apr 2014 07:44
It shows 86% in the achievement tracking. All 90 challenges completed.
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By AP E JC on 16 Apr 2014 11:59
Weirdest thing. I just opened the smartglass app and the achievement unlocked. Without my xbox one turned on . At least it worked somehow.
. At least it worked somehow.
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By AP E JC on 16 Apr 2014 12:02
Sounds like you had the same issue as this player. You may want to post there. Very odd, but I'm glad it unlocked for you.
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By MathGuy42 on 16 Apr 2014 12:06
Yes, basically the same. And the game was updated yesterday to include that horrible meld thing that is useless, and they can't solve the counter issue and put some access to challenges and scores inside the level.
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By AP E JC on 16 Apr 2014 12:19
Brilliant work around Mathguy . Thanks for working smarter and harder than 343.
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By D0CT0R SH0CKER on 24 May 2014 06:01
Glad my solution worked. I would not have come up with it without first reading Son of Kyuss' method, so he deserves the credit. I was also inspired by discussions of Peggle 2's All the Cheevos.
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By MathGuy42 on 24 May 2014 10:48
Great, my 10k co-op kills are stuck on 84%.
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By DoubleDRAGON666 on 11 Jun 2014 22:25
Fixed now, I dunno what fixed it. I tried turning my xbox and internet off and that hadn't worked. For some reason it started working again.
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By DoubleDRAGON666 on 12 Jun 2014 00:31
Fucking hate Xbox One. Can't disconnect from XBL and then play games you downloaded. So these fix it methods are useless to me. Every time i try to start it up offline, it won't let me because i don't have the disc.
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By Phenom1 T SMITH on 30 Jun 2014 23:24
^ I've not had trouble playing Spartan Assault offline while testing. Are you disconnecting your Internet or just signing out from XBL? The former should work; I don't think the latter will work due to the game being tied to your account.
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By MathGuy42 on 01 Jul 2014 00:55
I've disconnected my wireless, deleted my console save, and started it up only to be asked about the license to the game or whatever it asks you when you don't have the disc. It wouldn't let me play without being connected or having a prior save. I deleted it and tried to play while connected, stopped the sync, and it still wouldn't let me do the "fix."
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By Phenom1 T SMITH on 06 Jul 2014 15:15
Did you "buy" it via Games with Gold? I think you must be online to check to see if you still have Gold, since the Xbox One GwG's are supposed to deactivate if you let your Gold expire. I purchased the game back in December, so such a check isn't necessary on my console.
So it may be that the workarounds won't work for those who got the game via GwG.
I also wanted to verify that you are experiencing the Counter Glitch. What do your A-1 Assault Op counters say? Someone thought it might have been fixed for new users back in the Spring, but I can see from your Service Record that you didn't start playing until June 13.
So it may be that the workarounds won't work for those who got the game via GwG.
I also wanted to verify that you are experiencing the Counter Glitch. What do your A-1 Assault Op counters say? Someone thought it might have been fixed for new users back in the Spring, but I can see from your Service Record that you didn't start playing until June 13.
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By MathGuy42 on 06 Jul 2014 18:49
I did get it through Games With Gold. And I think my counter is at around 69/3 or so..
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By Phenom1 T SMITH on 08 Jul 2014 12:10
Phenom, I suggest you post your experience in this thread so that 343 sees that this is still an issue and that the workarounds won't work for you.
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By MathGuy42 on 08 Jul 2014 17:22
Phenom, this player was able to use one of the workarounds, even though he also got the game via Games with Gold. Perhaps the newest System Update fixed the licensing issue. I encourage you to try again and let us know what happens.
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By MathGuy42 on 16 Jul 2014 11:05
If you own the 360 version, the fix at the bottom of this solution sounds like it fixes the stats. It may allow you to unlock your last One achievement.
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By MathGuy42 on 20 Jul 2014 20:46
I don't & don't plan to lol.
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By Phenom1 T SMITH on 22 Jul 2014 16:06
I designated my xbox one as my home xbox and it worked. I now have the achievement and it should reflect on this site in the morning. Awesome.
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By Phenom1 T SMITH on 15 Aug 2014 04:39
I'm on 87/90 with 89 completed.
If this doesn't unlocked when I kill my 20th jackal the Box is going out the window!
(Only played X1 version so fingers crossed!)
If this doesn't unlocked when I kill my 20th jackal the Box is going out the window!
(Only played X1 version so fingers crossed!)
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By S P 4 C E Y on 20 Aug 2014 10:10
And guess what? It didn't fucking unlock.
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By S P 4 C E Y on 20 Aug 2014 22:10
And now it is unlocked - not sure if it was playing the first mission again, completing a weekly challenge or neither.
Not that the game notified me. I found out here!
Not that the game notified me. I found out here!
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By S P 4 C E Y on 20 Aug 2014 22:24
my achievement was stuck on 98%, after closing the game with the "quit" option from the home menu and restarting game it unlocked, thank you for the information.
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By Bulbasaauuur on 26 Aug 2019 10:37
Just to confirm, doing a weekly challenge also won't work. That was the trick for popping this on WP or Win8 if you had already completed the other. Doing all 3 weekly challenges won't work either.
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By AL1 on 24 Dec 2013 20:32
I've played previous versions and it just glitched on me on XB1...first Ghosts with this kind of glitch now Halo...youd think after all these years developers wouldn't have achievement problems like this.
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By NJDuke007 on 26 Dec 2013 04:55
I would also like to add that I have NOT played Halo: Spartan Assault (Win 8). I only have the Xbox One version. Today, my assault ops became glitched. The game was saying I did not complete the first two ops on A-1. The progress bar said 322/3 Grunt Minors killed with Frag Grenades and 244/20 Elite Minors killed. Even though I had previously completed these ops the game was registering them as incomplete. HOWEVER, I continued to complete all Assault Ops and when I finished the last one on F-5 the achievement popped, even though the game said 88/90. Just posting so if anyone else has this happen to them, fear not, there may be hope!
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By Puelsay19 on 30 Dec 2013 18:04
Yes, the 360 version will unlock immediately if all 90 Assault Ops have been done previously. According to this post by bsangel (343i Community Manager), the H:SA team made sure this would work due to feedback on the X1 issue.
Also, the post says, "Will let you know once there's a window for pushing the fix out to the Xbox One version (requires a Content Update, which is a bit of a lengthy process across our team and Xbox's)." AFAIK, this is the first confirmation that a fix is coming.
Also, the post says, "Will let you know once there's a window for pushing the fix out to the Xbox One version (requires a Content Update, which is a bit of a lengthy process across our team and Xbox's)." AFAIK, this is the first confirmation that a fix is coming.
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By MathGuy42 on 01 Feb 2014 11:42
I don't understand the delay either. As I argue here, the Counter Glitch should be fixable on the server side. A server side solution would fix One and 360 simultaneously. And there would be no need to coordinate with Xbox Live for a TU since the game itself isn't changing.
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By MathGuy42 on 10 Apr 2014 11:39
^ You should be OK. The Feb 19 update patched the game so that if the counter is 90/90, Extra Credit will unlock immediately at the Main Menu. Apparently they didn't fix the achievement progress tracker though, so those who have played on other platforms will still be off until they reach 100%.
You should check your counters for the A-1 Ops Warm Up That Pitching Arm and Rookie Target Practice. Those are the missions that can over-complete and then cause you to be stuck at 88/90 or 89/90. Someone posted that the counters seem to have swapped, so even if you're careful, it might glitch. I've not heard of issues with A-1 on Win 8 or WP8, so it might be safest to complete the Ops there, then not touch A-1 at all until you get Extra Credit.
You should check your counters for the A-1 Ops Warm Up That Pitching Arm and Rookie Target Practice. Those are the missions that can over-complete and then cause you to be stuck at 88/90 or 89/90. Someone posted that the counters seem to have swapped, so even if you're careful, it might glitch. I've not heard of issues with A-1 on Win 8 or WP8, so it might be safest to complete the Ops there, then not touch A-1 at all until you get Extra Credit.
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By MathGuy42 on 13 Apr 2014 14:03
Still asked me for my license. Maybe my system isn't updated. Though it says no updates available.
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By Phenom1 T SMITH on 20 Jul 2014 20:02
Phenom, are you playing on your Home Xbox One? I've learned that Games with Gold will not work with disconnected Internet on a non-Home console. Here are instructions for setting a console as your Home console. Hopefully this lets you use the workaround.
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By MathGuy42 on 04 Aug 2014 10:53
MR GABR1EL 95
TrueAchievements
TrueAchievements
28 Apr 2018 18:46
Just a tip.
If you want to make this achievement for Xbox One, Xbox 360, Windows 8 or Windows Phone (In this case you need to choose Windows 8 or Windows Phone to do the challenges, in case you do all the challenges in Windows 8 and start the game in Windows Phone, the achievement will remain unobtainable, or contrariwise), you need to do all the first challenges in WP or Win8. You're going to ask me why? I'll tell you why, this achievement for WP or Win8, it is only necessary to do 75 challenges to the achievement. Already the version of Xbox One or Xbox 360, needs to do 90 challenges.
In case you do all the challenges on Xbox One or Xbox 360 and start the game on Windows 8 or Windows Phone. This achievement will become Unobtainable. Because there are no more week challenges, which made the achievement possible.
But if you do all the challenges on Windows 8 or Windows Phone. Yes, you can still do that on Xbox One or Xbox 360, because when you connect your account, you still need to do the rest of the challenges, which would be the 25 remaining.
I made a video, and as I show in it, the achievement of doing all the challenges, appears with a percentage to be made.
Second tip.
I can confirm, if you have only 1 remaining challenge, you can win the achievement for both the Xbox One and Xbox 360. Basically you need to join on the missing map for your last challenge. You need to do this on both platforms, after you have join the match, I recommend doing it first on the Xbox 360 and then on the Xbox One. You can watch my video for no error.
If you want to make this achievement for Xbox One, Xbox 360, Windows 8 or Windows Phone (In this case you need to choose Windows 8 or Windows Phone to do the challenges, in case you do all the challenges in Windows 8 and start the game in Windows Phone, the achievement will remain unobtainable, or contrariwise), you need to do all the first challenges in WP or Win8. You're going to ask me why? I'll tell you why, this achievement for WP or Win8, it is only necessary to do 75 challenges to the achievement. Already the version of Xbox One or Xbox 360, needs to do 90 challenges.
In case you do all the challenges on Xbox One or Xbox 360 and start the game on Windows 8 or Windows Phone. This achievement will become Unobtainable. Because there are no more week challenges, which made the achievement possible.
But if you do all the challenges on Windows 8 or Windows Phone. Yes, you can still do that on Xbox One or Xbox 360, because when you connect your account, you still need to do the rest of the challenges, which would be the 25 remaining.
I made a video, and as I show in it, the achievement of doing all the challenges, appears with a percentage to be made.
Second tip.
I can confirm, if you have only 1 remaining challenge, you can win the achievement for both the Xbox One and Xbox 360. Basically you need to join on the missing map for your last challenge. You need to do this on both platforms, after you have join the match, I recommend doing it first on the Xbox 360 and then on the Xbox One. You can watch my video for no error.
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28 Apr 2018 18:46
UNSC MEXICO
TrueAchievements
TrueAchievements
15 Jul 2021 21:12
Halo Spartan Assault - Crédito Extra (Solución)
El logro consiste en realizar 3 desafíos en cada misión del juego, por un total de 90 desafíos. El problema es que para la mayoría de los jugadores dicho logro se queda bloqueado, incluso al completar los 90 desafíos. Esto jamás fue solucionado pero yo encontré un solución que me funcionó:
- Borrar tu partida guardada.
- Desconectar tu consola de internet.
- Jugar la primera misión y realizar los 3 desafíos (o el que tiene bug).
- Cerrar el Juego.
- Conectarte a internet.
- Iniciar el juego.
- Cancelar la sincronización.
- Te saldrá la opción de elegir entre "Datos guardados localmente" y "En la Nube".
- Elegir datos locales.
- Ir al apartado del juego "Logros".
Si hiciste todo bien se habrá arreglado el error con las partidas guardadas y saltará el logro.
El logro consiste en realizar 3 desafíos en cada misión del juego, por un total de 90 desafíos. El problema es que para la mayoría de los jugadores dicho logro se queda bloqueado, incluso al completar los 90 desafíos. Esto jamás fue solucionado pero yo encontré un solución que me funcionó:
- Borrar tu partida guardada.
- Desconectar tu consola de internet.
- Jugar la primera misión y realizar los 3 desafíos (o el que tiene bug).
- Cerrar el Juego.
- Conectarte a internet.
- Iniciar el juego.
- Cancelar la sincronización.
- Te saldrá la opción de elegir entre "Datos guardados localmente" y "En la Nube".
- Elegir datos locales.
- Ir al apartado del juego "Logros".
Si hiciste todo bien se habrá arreglado el error con las partidas guardadas y saltará el logro.
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15 Jul 2021 21:12
HEMINGWAY 102
TrueAchievements
TrueAchievements
02 Jun 2021 09:32
2021 it pop
If ANYONE has this problem
Example: 89/90
Example: A-1 Kill 3 Grunts with Frag Grenades. I got 99/3.
Step 1: Go to >Settings >Network settings >Go offine.
Step 2: Oven the Game >Press
>Manage game and add-ons >Saved Date >Delete All >Delete All.
Step 3: Load the game up and go and see >Assault Ops. You Completed 0/90.
Step 4: Play that mission that is buggy for you for Example: A-1 Kill 3 Grunts with Frag Grenades.
Step 5: When you're Finished complaining that CHALLENGE Kill 3 Grunts with Frag Grenades. Go see your Assault Ops it would say you complete 1/90.
Step 6: Go to
>Settings >Network settings >Go online.
Then go back to the game that should pop! or Play that mission again.
I hope you would get it.
If ANYONE has this problem
Example: 89/90
Example: A-1 Kill 3 Grunts with Frag Grenades. I got 99/3.
Step 1: Go to >Settings >Network settings >Go offine.
Step 2: Oven the Game >Press
>Manage game and add-ons >Saved Date >Delete All >Delete All.Step 3: Load the game up and go and see >Assault Ops. You Completed 0/90.
Step 4: Play that mission that is buggy for you for Example: A-1 Kill 3 Grunts with Frag Grenades.
Step 5: When you're Finished complaining that CHALLENGE Kill 3 Grunts with Frag Grenades. Go see your Assault Ops it would say you complete 1/90.
Step 6: Go to
>Settings >Network settings >Go online. Then go back to the game that should pop! or Play that mission again.
I hope you would get it.
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02 Jun 2021 09:32
BiggD, WORLDEATER
XboxAchievements
XboxAchievements
Each of the thirty missions in the Single Player Campaign has three specific Assault Ops, or challenges, that must be completed for this achievement. That would mean there are a grand total of ninety challenges to be done, so as I’m sure you guessed, this is where most of your time on the game will be spent.
These challenges are very grindy, and most of them aren’t even difficulty. They are simply tedious and annoying. They range from, “Kill x amount of Drones with a Plasma Pistol” to “Destroy x amount of Wraiths with a Grizzly Tank.” Overall, you’ll need to grind all of them out and take note, that if you complete an Assault Op mid-mission, you can quit out of the mission and your progress will still be saved.
You can view your progress for each Assault Op in the Main Menu, and for a simple checklist of all ninety, consult THIS LINK.
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Shiftie
XboxAchievements
XboxAchievements
For this you'll need to focus on finishing the 75 mission-specific challenges, 3 for each mission in the game. The requirements can be found by looking in the challenges section in the main menus. In general, they range rather drastically in difficulty and the amount of time you'll need to spend doing them, so you'll want to look at them early on and try to take them out while you go through your playthroughs and try to get gold on all missions.
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