 There are 50 achievements with a total of 1000 points.
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 | You Look Just Like I Feel | 30  | ||||
| Upgrade every Appearance slot once for your Marine |  (3) | |||||
 | Structural Perfection | 5 | ||||
| Edit a Xenomorph Loadout | (5) | |||||
 | Still Got a Job to Do | 20 | ||||
| Complete Rampart |  | |||||
 | Stay Frosty | 20 | ||||
| Complete an entire Challenge category | (1) | |||||
 | State of the Badass Art | 50 | ||||
| Complete all Campaign levels on Ultimate Badass difficulty | (30) | |||||
 | Short, Controlled Bursts | 20 | ||||
| Defeat all Xenomorphs in the Sulaco hangar bay without them crossing your barricade | (17) | |||||
 | Secreted from What? | 20 | ||||
| Kill 5 Spitters without being damaged by acid | (5) | |||||
 | Remember the Fallen | 30 | ||||
| Collect all 35 Dog Tags | (5) | |||||
 | Ready to Fry Half a City | 5 | ||||
| Edit a Marine Loadout | | |||||
 | Quoth the Raven | 20 | ||||
| Complete The Raven | | |||||
 | Personal Friend of Mine | 10 | ||||
| Collect a Legendary Weapon | (18) | |||||
 | Perfect Killing Machine | 20 | ||||
| Upgrade every Loadout slot for a Xenomorph class | (3) | |||||
 | Oorah to Ashes | 10 | ||||
| Collect a Dog Tag | (1) | |||||
 | Not Bad For a Human | 40 | ||||
| Complete all Campaign levels on Hardened difficulty | (4) | |||||
 | No Offense | 20 | ||||
| Melee a Lurker that is pouncing towards you | (3) | |||||
 | No Need For Alarm | 20 | ||||
| Complete One Bullet without setting off the alarm | (1) | |||||
 | Need a Deck Of Cards? | 5 | ||||
| Set up a UA 571-C Remote Sentry | (4) | |||||
 | Mostly Come at Night... | 20 | ||||
| Find Newt's doll | (18) | |||||
 | Micro Changes in Air Density | 10 | ||||
| Track 100 hostile targets with the Motion Tracker | (5) | |||||
 | Majority Shareholder | 25 | ||||
| Spend 30 Commendations | | |||||
 | Love at First Sight | 10 | ||||
| Survive a Close Encounter with a Facehugger | (26) | |||||
 | Let's Rock! | 20 | ||||
| Kill 10 Xenomorphs in a game with the M56A2 Smart Gun | (4) | |||||
 | Lean and Mean | 20 | ||||
| Earn Rank 20 as a Marine | | |||||
 | Just a Grunt | 20 | ||||
| Complete Hope in Hadley's | (4) | |||||
 | It's a Dry Heat | 20 | ||||
| Kill 3 enemies with a single U4 Firebomb | (5) | |||||
 | I Love the Corps! | 40 | ||||
| Earn Rank 60 as a Marine | (18) | |||||
 | I Like to Keep These Handy | 30 | ||||
| Collect all 6 Legendary Weapons | (6) | |||||
 | I Heard THAT | 25 | ||||
| Collect all 12 Audio Logs | (3) | |||||
 | I Feel Safer Already | 10 | ||||
| Have another player join your party | (7) | |||||
 | I Can Handle Myself | 40 | ||||
| Purchase all Upgrades for a weapon | (2) | |||||
 | Heavy Lifting | 20 | ||||
| Defeat the Raven in under 1:10 on Soldier difficulty or higher | (12) | |||||
 | Game Over, Man! | 30 | ||||
| Complete all Campaign levels on any difficulty | (1) | |||||
 | Fire Drill | 20 | ||||
| Arm the emergency release and escape in under 2:30 on Sulaco Falls | (3) | |||||
 | Field Promotion | 10 | ||||
| Earn Rank 2 as a Marine | (1) | |||||
 | Field Modified, Kill Certified | 20 | ||||
| Upgrade every slot for a weapon | | |||||
 | Entry Prohibited | 20 | ||||
| Kill 10 Xenomorphs that are using vents | (4) | |||||
 | Eat This! | 10 | ||||
| Kill a Xenomorph with a shotgun at very close range | (11) | |||||
 | Dragged Queen | 20 | ||||
| Complete Home | (12) | |||||
 | Don't Count Me Out | 5 | ||||
| Revive a teammate | | |||||
 | Distinguished Service Medal | 30 | ||||
| Complete all Challenges | (119) | |||||
 | Coming Outta the Walls! | 10 | ||||
| Kill a Xenomorph climbing on the walls or ceiling | (2) | |||||
 | Bad Feeling About This Drop | 20 | ||||
| Complete Sulaco Falls | (1) | |||||
 | Arbitrarily Exterminated | 30 | ||||
| Kill 2179 Xenomorphs | (28) | |||||
 | Anytime, Anywhere | 20 | ||||
| Kill a Crusher without it damaging you | (5) | |||||
 | Another Day in the Corps! | 20 | ||||
| Complete Distress | (2) | |||||
 | Another Bug Hunt | 5 | ||||
| Complete a Challenge | (1) | |||||
 | Adios, Muchachos | 20 | ||||
| Gib two enemies at once | (11) | |||||
 | Adaptive Morphology | 30 | ||||
| Upgrade every Appearance slot once for a Xenomorph class | (2) | |||||
 | ... But No Cigar | 20 | ||||
| Rescue a teammate from a Close Encounter | (8) | |||||
Secret Achievements | ||||||
 | Easter Egg | 5 | ||||
| Find the Easter Egg | (6) | |||||
| Developer: Gearbox Software Publisher: SEGA Genre Shooter Release: US: February 12, 2013 |  | ||
| Collection: | 278 | ||
| Wishlist: | 208 | ||
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