BioShock 2

Alright so there are a number of ways to earn xp, if u do not want to take the boosting path (no offense to Buga75 returns of course).

ok the good thing about Bioshock 2's multiplayer is that it's kind of like Modern Warefare2, you DO NOT need to win to earn xp, just do certain things while the match is going on. Bioshock 2 offers about 10-12 different ways of earning xp.

10 points for every kill
5 points for assits
100 points for killing a Big Daddy
50 points for becoming a Big Daddy
10 points for each Adam vial you find (the red ones that look like eve hypo)
10 points for Hacking a Turret or Vending Machine
75-500 points for completing Trials - this can be simple tasks like killing a big daddy with a shotgun or melee killing someone who is on fire. (thanks to whoever left the comment)
You can earn a Max of 200 points from your match standing, so the better you do of course the more adam you earn.
50 points for getting a killstreak, i'm not sure how many kills this requires
10 points for each research photo you take
50 points for capturing a little sister
3 points per second for holding the little sister in ADAM grab (guidebook give me that info)

~The Strategy~

Bioshock 2's multiplayer has several games modes

Survival of the Fittest (Free for all)
Civil War (Team Deathmatch)
Capture the Little Sister (CTF)
Turf War (where you have 3 points to hold onto for a certain amount of time)
Adam Grab and Team Adam Grab (Basically Halo 3's oddball, you hold a little sister for the longest time possible)
and Last Splicer Standing (basically you only get 1 life and once u die thats it till next round)

1) When trying to go for level 40, I DO NOT recommend playing Turf War, Team Adam Grab or Last Splicer Standing, UNLESS you have a good enough team, if you never get the little sister then the game will end quickly without much chance to get xp from it. The point is to try and earn as much Adam as you can during a match.

2) Game Modes like Civil War and Capture the Little Sister can last for the longest amount of time. The goal while the match goes on is try and earn every single piece of point you can. Hack every turret or vending you come across (10 points there) When finding an enemy try to kill them as best as you can, if your not able to then try and run away, a lot times (at least for me) the enemy doesn't allows follow you because chances are he is hurt too. If you come across a firefight with enemies and your team, try to land at least a melee hit or a bullet on the enemy evening if your not going to kill him, this will still earn you 5 points. Plus even if your team doesn't win, if you can still get 1st or 2nd place among the ranks you'll earn 150 or 200 adam for it. So winning if not everything to ranking up

3) Pick up any red vials of Adam you see, a lot of people don't seem to care about them but hey its a quick 10 points toward leveling up. Also research every dead enemy body you come across, again a quick 10 points, plus it helps with killing them.

4) Try to become the Big Daddy whenever you can, if your not able to, don't waste your time trying to kill him first (I mean make sure you help take him down, but don't solely focus on him) try to kill him when he is near death, that way if you land the killshot that earns you 100 points (this happens less more than often, but hey in every Civil War, there is usually 2 Big Daddies at most)

5) I can't offer any great tips on earning kills, the only strategy I find helps is use Aero Dash with a Shotgun, hit them with Aero Dash, shotgun them, then melee right away if they are still alive, this will usually kill them right after the melee, as long as your quick enough. Getting kills comes with luck or skill at times, depending on the person you go up against, so get those research photos to help with this.

6) Trials can be your biggest help at leveling up sometimes. Once you earn trials at level 3, start working on them, several of them are simple like land electric bolt 30 times on an enemy or take 30 research pics overtime. Try to complete as many trials as you can, cause they can drastically increase your total adam for that match if you end up completing several at one time.

Sorry for the Length lol. Hope this guide can help offer some advice on leveling up, if you try to pick up as many little points during a match as you can you can earn roughly 600-900 adam a game. I've been playing multiplayer (according to the statistic's page in the game) for about 6-8 hours and I'm already level 18. If you feel I need to add anything or forgot something let me know

I posted a guide on how to boost but it wasnt well received. People are so ungratefull these days. If you want 2,800 xp a match, i have seen my friend get 3,200 using this method.

You can only do this trick on Farmers Market there is a vending machine that is infront of a little mini wall you can hack behind the wall and have the other person hold the little sister to trigger the trap. Doing this with speedy hack will net you close to 3000 xp a game if done without mistakes.

Credit goes to EL MACHO46 for finding this.

UPDATE!

I was recently finishing up the dlc for this game and me and my friend XRL8ing666 found a trick above all others for this game. It may or may not be common knowledge yet but on the map Smugglers Hideout there is a gold mine of an adam trick.

Go to the vending machine near where the little sister spawns and have one guy stand near the left side of the vending machine and the one hacking it on the right side. You can hack here without having the bomb hurt either of you because it falls into the water. Over 3000 adam a game with ease here.

Again this is a boosting method so if you are anti boosting im sorry but boosting is legal get over it.

In BioShock 2, ADAM is a green liquid in its raw form that is the stem cells that are gained from a parasitic type of Sea Slug. These are gained by matches in BioShock 2 multiplayer. ADAM is used to level up the player, by ranks, to unlock items and features in the game itself. There are 50 ranks in BioShock 2 but for this achievement you only need the first forty ranks.

Level 1-10
The lowest levels require the least amount of ADAM.

•Level 1- Beginning level, requires no ADAM and will unlock starter audio dairies, the winter blast, the shotgun, the pistol, and the electro bolt incinerate.
•Level 2- Requires 500 ADAM and will unlock the machine gun, the maternal instinct, and staying visible.
•Level 3- Requires 1000 ADAM and will unlock the security evasion and master researcher.
•Level 4- Requires 2000 ADAM and will unlock Aero dash, and a bronze club membership.
•Level 5- Requires 3000 ADAM and will give the pistol automatic upgrade and the “without a word”.
•Level 6- Requires 4000 ADAM and will unlock the grenade launcher.
•Level 7- Requires 5000 ADAM and will unlock the EVE saver and speedy recovery.
•Level 8- Requires 6000 ADAM and will unlock the geyser trap.
•Level 9- Requires 7000 ADAM and will give the shotgun rate of fire upgrade.
•Level 10- Requires 9000 ADAM and will unlock the silver society membership and the crossbow.
Level 11-20
The lower mid-range levels require a more moderate amount of ADAM.

•Level 11- Requires 10500 ADAM and will unlock the backstabber.
•Level 12- Requires 12000 ADAM and will unlock telekinesis.
•Level 13- Requires 13500 ADAM and will give the tommy gun clip increase upgrade.
•Level 14- Requires 15000 ADAM and will give the nail gun.
•Level 15- Requires 16500 ADAM and will unlock the metabolic EVE.
•Level 16- Requires 18000 ADAM and will give the Houdini Plasmid.
•Level 17- Requires 19500 ADAM and will give the grenade launcher homing grenade upgrade.
•Level 18- Requires 21000 ADAM and will give the elephant gun.
•Level 19- Requires 22500 ADAM and will unlock sabotage.
•Level 20- Requires 25500 ADAM and will unlock the insect swarm and the gold circle membership.
Level 21-30
The upper mid-range levels will require a good amount of ADAM to level.

•Level 21- Requires 28000 ADAM and will give the crossbow damage upgrade and Jacob Norris’ final audio diary.
•Level 22- Requires 30500 ADAM and will give repairman.
•Level 23- Requires 33000 ADAM and will give the nail gun magazine upgrade.
•Level 24- Requires 35500 ADAM and it unlocks speedy hacker.
•Level 25- Requires 38000 ADAM and it gives the elephant gun sniper scope upgrade.
•Level 26- Requires 40500 ADAM and it unlocks slugger.
•Level 27- Requires 43000 ADAM and it gives the pistol damage upgrade.
•Level 28- Requires 45500 ADAM and it unlocks Leg Up.
•Level 29- Requires 48000 ADAM and it gives the shotgun automatic reloader upgrade.
•Level 30- Requires 53000 ADAM and it unlocks Fast Feet.
Level 31-40
The highest levels require the most amount of ADAM to level up


•Level 31- Requires 57000 ADAM and it gives the tommy gun recoil decrease upgrade.
•Level 32- Requires 61000 ADAM and it unlocks Deadly Machines.
•Level 33- Requires 65000 ADAM and it gives the grenade launcher a velocity boost upgrade.
•Level 34- Requires 69000 ADAM and it unlocks Head Hunter.
•Level 35- Requires 73000 ADAM and it gives a crossbow rate of fire upgrade.
•Level 36- Requires 77000 ADAM and it unlocks Big Game Hunter.
•Level 37- Requires 81000 ADAM and it gives a nail gun damage upgrade.
•Level 38- Requires 85000 ADAM and it unlocks Death Trap.
•Level 39- Requires 89000 ADAM and it gives the elephant gun damage upgrade.
•Level 40- Ending level, requires 97000 ADAM and it gives a special reward, the final cutscene to the game, and Resurrection.

This is just a simple boosting method to get the level achievements quicker.
1. Get a few other people who want to boost.
2. Play ADAM Grab (Not the team one)
3. Try to pick a level with at least 3 turrets (So up to 6 people may boost)
4. If you do not get a level with 3 then just have the 2 other players trade off on holding the little sister for points. (If you have 6 people.)
5. Get 2 people per turret.
6. Trade off hacking it for 10 points every 5 seconds-ish
7. Make sure everyone has Speed Hacker (I forgot what its called) to make it go by faster.

[EDIT:] If nobody touches the little sister everybody gets the bonus points for a win, because the game results in a equal tie.

If for whatever reason, you want to boost and you don't have Speed Hacker you could always boost w/o it. Yes, it will be slower but eventually you will unlock Speed Hacker and then you're all good.

GOOD LUCK!!!

Feel free to message me if anything was not clear enough.

I throughly enjoyed playing this. I rarely play multiplayer but bio shock is exceptional. I knew this was gonna take some time, It took me 20 hours and 200 matches before I had the required 97,000 adam (xp) Like the others say pick up all red vials, hack everything, research everyone. For the tonics I generally used the expert research, fast hack and then swapped the third tonic between health or adam or whatever else decent i was unlocking as I was ranking up. I found using electric shock to stun an enemy and then a smooth head shot with the elephant gun netted me the most kills, but to be honest I changed the weapons lots so I could try and complete the trials. the trials ranged from easy to challenging and some you ll naturally get anyway. If you dont bother with the trials then just expect to be playing for alot more than 20 hours. (Some trials net you 500 xp) This really is a game to saviour, enjoy it. Some matches I entered and people were boosting, fair enough but This game doesn t get boring ! One last note I found the ressurection tonic unlocked at level 40 to be quite useless, stick with death trap for extra kills : ) And as you level up you will start winnging games, getting more kills and kicking ass as your upgrades get significantly better. : )

Each rank unlocks a weapon, a plasmid or tonic which can be used to help you get more kills. Rank 40 requires 97,000 Adam. The choice i would suggest for getting there quickly is to use the Machine Gun with increased damage and crossbow with increased rate of fire. Go for decreased research and quicker health regeneration. If u r after Adam Vial u can use leg up on many maps to find hidden vials in hard to reach places and use death trap(rank 38) and whatever else u prefer. its the way i ranked up quickly. try researching everything u see, hack everything and do as many of the trials that u can. Some of them r hard to get and so its best to just focus on the ones u think that u can get easily enough.

If you have someone that has the achievement and doesn't mind helping you. Have him use telekinesis in front of a vending machine and then hack it. He should pick up the mine that pops out. If you get it right this will allow you to hack the machine over and over again and you can earn up to 2500-2700ADAM per match as apposed to the 1500-1700ADAM from turret hacking, since you don't have to wait for the other player to hack the machine after you.

>> Legit Choose the Impossible achievement solution only <<

I think that the best way to obtain this achievement legit is to play Civil War how much as you can. Survival of the Fittest is much more frustrating and less effective, Capture the Sister takes too long. Others are much more less effective.
One Civil War match takes about 5-7 minutes, and you get at least 150 ADAM for completing each (if you aren't in the winning team) or 200 ADAM (if your team win tha match) even if you don't do anything else during this time.
You can easily gain about 350-500 ADAM if your stats are good (10 ADAM per each kill, photo, hack & vials, 50 ADAM for killing streak, 5 ADAM for kill assist, 100 ADAM for Big Daddy kill and 50 ADAM for each being Big Daddy) or much more if you complete some trials (additional 75-500 ADAM for each).
I've gained level 40 (97.000 ADAM) in about 25 hours total playing time without boosting at all (+ about 3 hours waiting/lobby time).

* If you want to leave a negative vote, please tell me why, so I can fix my solution if there are any mistakes in it.

hey we where boosting experience and we hacked turret. then someone disconnected and a level 50 joined. he learned us a new way of boosting. i forgot his name but it started with kris. credits to him. and to the person who explained everything. i forgot his name but i think it was potential91 who explained it to the rest of the boosters and the level 50 random who showed him. anyway you should known turrets is faster. you should only use this boost when theres only 2 turrets in a map
1 turret boost give 1700 if fast. 2 turret boost is 3400. the vending boost give you 3000 boost and your partner 200 first boost and vice versa second boost. 3200 adam against 3400. but 3200 is still better then running around and do trials if theres only 2 turrets use this. to the boost details now

how to boost it:

* first check the guides how to make a group. (adam grab boost)
* you need telekinesis
* try to find a vending machine not far of the little sister

here how its work

person A hacks the vending. it turns red. person B runs to the vending and a second later he press L2. and hold L2. if done correctly person B is holding the vending machine bomb now. person B moves closer to the vending BUT NOT TO CLOSE and stand before the vending (the part where the clown is drawn) person B keeps holding the L2 button (telekinesis tonic). you will not run out of eve. it will go to zero your eve but if your keep holding it it wont cancel the telekinesis. person A hacks now for a full 10 min. he should have 3000 if everythings go well. if there is a second map with 2 turrets person A switch with B

last note: this can take a couple of tries if doing this boost for the first time. expect you explode a few times before you mastered this boost

positive points.
there are alot of vending machines. you can find many.

negative points

personnaly i didnt like this way of boosting. because it was not organised and the biggest negative point if doing vending boost your stuck with your partner. because if you hack your partner owns the next hack.