Mass Effect 2

Mass Effect 2

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Mission Accomplished

Mission Accomplished

Save humanity throughout the galaxy from certain annihilation

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How to unlock the Mission Accomplished achievement in Mass Effect 2 - Definitive Guide

Story related so can't be missed.

SOME TIPS (with possible spoilers):

-Use the cover in the middle of the middle platform against the final boss.
-The eyes and middle of the chest are the weak points.
-Save your heavy weapon ammo for the Harbringer(s) and final boss.
-Move around to collect ammo when you get low, and try to stay under cover as much as possible.

I personally just used my sniper (I upgraded 5 times and had the Geth model) on a majority of the enemies because it was a one shot, one kill deal. I used the AR only when I ran out of sniper ammo. The best heavy weapon to use imo is the beam rifle (the Collector weapon) because there's no down time for reloading.
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4 Comments
On the final boss if you're playing on Normal or lower and have a pretty strong weapon per shot I would say run to the end of the platforms and do some massive damage to the weak point in the chest. I haven't tried nuking it yet but I'm sure it works damn good.
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By Box#4473 on 05 Feb 2010 08:10
Double warp works very well also :)
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By Solario32 on 01 Nov 2011 19:13
I am wondering why the ratio is so low, how long is a single (first) playthrough?
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By GamePadZebby on 07 Sep 2022 04:48
Shoot it in the eyes! I was playing soldier class.Dignix states about nuking. Nuking needs charging up before deployment, so it is not ideal in this situation.

I agree with dav , I sniped using the X-07e Viper Sniper Rifle. That allows many quick fire before reload. Even pistol can be utilised to find the weak glowing points.

In my experience,I had Garrus and Samara. If I knew what I was up against, I would have probably chosen Garrus,Zaeed/Thane, because of their long range shots.
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By CrowdedLazarus on 01 Mar 2010 13:27
View all 4 comments Show less comments
Remember that it's not timed. Don't expose yourself when it's dangerous. Your squad members can kill the collectors that come during the battle. Also, save your heavy weapons ammo. But the most important thing is taking your time. If the boss is charging up his main crazy gun thing stay in cover. That weapon will kill you.
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before the final battle make sure you have a cain and all ammo upgrades for it. if you do 2 shots from it will kill the final boss just be careful and don't miss. But if you do miss don't worry the heavy pistol does a decent amount of damage to the final boss. sniper rifles also work good.

note the 2 shots on regular will kill it i haven't tried it on a higher difficulty but I would assume it takes more than 2 shots with the cain.
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14 Feb 2010 19:35

Story related. If you want more info, continue reading. Otherwise, know that this will unlock through the natural progression of the story.

Here we go, the final mission in Mass Effect 2. And yes, it is pretty epic. The action will actually start on the Normandy as a collector probe has breached the hull in the cargo hold. Expel it as quickly as possible. You’ll need to fight it twice no matter what, but use what you have available to get rid of it. Once you’re on the collector base, you need to figure out who takes the first two tasks, leading the diversion team and who goes into the vents. The best choices are outlined below.

(THESE COMPANIONS MUST BE LOYAL)
Vents: Tali, Kasumi, or Legion
Fire Team Leader: Garrus, Miranda, or Jacob

Take two strong companions with you for this first part. There’s quite a lot of combat against various types of collectors. Zaeed, Grunt, Thane, or Legion are good choices. Along the way, you’ll see green panels. Those are valves that you will have to disable so that whomever goes into the vents can continue to progress through. You will have a limited amount of time to get to each valve, so don’t strand your crewmember for too long. There are eight of these valves in all. There is a meter on the bottom right of the screen that will tell how much danger the person in the vents is in. Once you’re clear of all eight valves, Tali will open the door for you.

In this next section, you’ll be faced with seeker swarms and you’ll need some form of protection. Select one of the ultra powerful biotics to provide a shield for you. The best choices are below. You’ll also need to select a leader for the secondary squad and someone to escort the remaining Normandy crew back to the Normandy.

(THESE COMPANIONS MUST BE LOYAL)
Biotic Specialist: Samara/Morinth or Jack
Fire Team Leader (Part 2): Garrus, Miranda, or Jacob
Escort: Mordin, Kasumi, Tali, or Jack

Stay in the biotic’s bubble while moving through the seeker swarms. You will still be able to attack enemies while inside and the biotic will stop allowing you to take cover. There will also be husks and abominations in this section. When you finish clearing enemies, tell the biotic to continue moving. Be sure to pick up ammo along the way. It’s easy to miss the clips laying around.

Now it’s time for the final sequence. If everyone is loyal or you’re playing on Insanity, pick two of the most reliable with you. Who you take with you has an effect on the chances of your entire crew's survival. Each character has a defensive rating. Grunt, Zaeed, and Garrus are all 3. Thane, Legion, Samara/Morinth, Jacob, and Miranda have a defensive rating of 1. Mordin, Kasumi, Tali, and Jack have a rating of zero. If you add a 1 to each rating if they're loyal, add up all of the ratings, and then divide by the total number of characters holding the line (in short, take an average), if the average rating is above 2.0, then all will survive. If it's below, then anyone that isn't loyal or weak defensively will die.

I took Miranda and Legion with me. That combination was extremely effective. Two things to be aware of though. Make sure that you have the geth sniper rifle researched for Legion. He will be devastatingly lethal with it. Always be aware of where Miranda is. She has a tendency to go Rambo and leave cover unnecessarily. See No One Left Behind trophy_gold.png  for a further explanation. There is a way to keep everyone alive even if someone isn’t loyal.

This fight will be similar to the sprung trap at the end of the mission on the collector ship. There will be three to four collectors attacking at a time and they will arrive on the floating platforms. After five or six platforms, the one with the main control panel will arrive. This one will have abominations and scions on it, but save your heavy weapons. You will need them later.

Once your final objective is revealed, it’s clear what to do. Destroy the four red tanks while fending off the collectors. You’ll most likely be taking them out one at a time, but with the M-97a Viper sniper rifle, you can take out two at a time if you’re quick enough. Once all four are gone and your objective is down, you’ll have one last decision to make courtesy of the Illusive Man. Now comes the fun part. Remember when I said to save your heavy weapons? Now is a good time to use them. Aim for the eyes. When you see a red build up around the mouth, get into cover…immediately. At the same time, you’ll have collectors attacking you. There are multiple weak spots to aim for. Anywhere you see glowing red, aim there. Once you bring down the life meter in the bottom right corner, enjoy the closing cutscenes.
 
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Story related. If you want more info, continue reading. Otherwise, know that this will unlock through the natural progression of the story.

Here we go, the final mission in Mass Effect 2. And yes, it is pretty epic. The action will actually start on the Normandy as a collector probe has breached the hull in the cargo hold. Expel it as quickly as possible. You’ll need to fight it twice no matter what, but use what you have available to get rid of it. Once you’re on the collector base, you need to figure out who takes the first two tasks, leading the diversion team and who goes into the vents. The best choices are outlined below.

(THESE COMPANIONS MUST BE LOYAL)
Vents: Tali, Kasumi, or Legion
Fire Team Leader: Garrus, Miranda, or Jacob

Take two strong companions with you for this first part. There’s quite a lot of combat against various types of collectors. Zaeed, Grunt, Thane, or Legion are good choices. Along the way, you’ll see green panels. Those are valves that you will have to disable so that whomever goes into the vents can continue to progress through. You will have a limited amount of time to get to each valve, so don’t strand your crewmember for too long. There are eight of these valves in all. There is a meter on the bottom right of the screen that will tell how much danger the person in the vents is in. Once you’re clear of all eight valves, Tali will open the door for you.

In this next section, you’ll be faced with seeker swarms and you’ll need some form of protection. Select one of the ultra powerful biotics to provide a shield for you. The best choices are below. You’ll also need to select a leader for the secondary squad and someone to escort the remaining Normandy crew back to the Normandy.

(THESE COMPANIONS MUST BE LOYAL)
Biotic Specialist: Samara/Morinth or Jack
Fire Team Leader (Part 2): Garrus, Miranda, or Jacob
Escort: Mordin, Kasumi, Tali, or Jack

Stay in the biotic’s bubble will moving through the seeker swarms. You will still be able to attack enemies while inside and the biotic will stop allowing you to take cover. There will also be husks and abominations in this section. When you finish clearing enemies, tell the biotic to continue moving. Be sure to pick up ammo along the way. It’s easy to miss the clips laying around.

Now it’s time for the final sequence. If everyone is loyal or you’re playing on Insanity, pick two of the most reliable with you. Who you take with you has an effect on the chances of your entire crew's survival. Each character has a defensive rating. Grunt, Zaeed, and Garrus are all 3. Thane, Legion, Samara/Morinth, Jacob, and Miranda have a defensive rating of 1. Mordin, Kasumi, Tali, and Jack have a rating of zero. If you add a 1 to each rating if they're loyal, add up all of the ratings, and then divide by the total number of characters holding the line (in short, take an average), if the average rating is above 2.0, then all will survive. If it's below, then anyone that isn't loyal or weak defensively will die.

I took Miranda and Legion with me. That combination was extremely effective. Two things to be aware of though. Make sure that you have the geth sniper rifle researched for Legion. He will be devastatingly lethal with it. Always be aware of where Miranda is. She has a tendency to go Rambo and leave cover unnecessarily. See No One Left Behind for a further explanation. There is a way to keep everyone alive even if someone isn’t loyal.

This fight will be similar to the sprung trap at the end of the mission on the collector ship. There will be three to four collectors attacking at a time and they will arrive on the floating platforms. After five or six platforms, the one with the main control panel will arrive. This one will have abominations and scions on it, but save your heavy weapons. You will need them later.

Once your final objective is revealed, it’s clear what to do. Destroy the four red tanks while fending off the collectors. You’ll most likely be taking them out one at a time, but with the M-97a Viper sniper rifle, you can take out two at a time if you’re quick enough. Once all four are gone and your objective is down, you’ll have one last decision to make courtesy of the Illusive Man. Now comes the fun part. Remember when I said to save your heavy weapons? Now is a good time to use them. Aim for the eyes. When you see a red build up around the mouth, get into cover…immediately. At the same time, you’ll have collectors attacking you. There are multiple weak spots to aim for. Anywhere you see glowing red, aim there. Once you bring down the life meter in the bottom right corner, enjoy the closing cutscenes.

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This is a story related achievement, which will unlock with natural progression through the game.

Complete the game on any difficulty and this will unlock. If you aren’t to concerned about the side missions on your playthrough keep completing the Illusive Man’s missions.

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This is a story related achievement, which will unlock with natural progression through the game.

Complete the game on any difficulty and this will unlock. If you aren’t to concerned about the side missions on your playthrough keep completing the Illusive Man’s missions.

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You will receive this trophy after you beat the game. The result of your passage is not important - whether someone on the team dies or not
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13 Jan 2011 13:05