Full list of all 60 Aliens: Colonial Marines achievements.
The base game contains 50 achievements, and there is 1 DLC pack containing 10 achievements.
Complete all Challenges
Earn Rank 60 as a Marine
Upgrade every Appearance slot once for a Xenomorph class
Upgrade every Loadout slot for a Xenomorph class
Kill 2179 Xenomorphs
Upgrade every Appearance slot once for your Marine
Edit a Xenomorph Loadout
Complete an entire Challenge category
Defeat the Raven in under 1:10 on Soldier difficulty or higher
Collect all 35 Dog Tags
Collect all 6 Legendary Weapons
Kill a Crusher without it damaging you
Kill 3 enemies with a single U4 Firebomb
Spend 30 Commendations
Upgrade every slot for a weapon
Gib two enemies at once
Kill 10 Xenomorphs in a game with the M56A2 Smart Gun
Melee a Lurker that is pouncing towards you
Find the Easter Egg
Defeat all Xenomorphs in the Sulaco hanger bay without them crossing your barricade
Find Newt's doll
Complete all Campaign levels on any difficulty
Complete all Campaign levels on Hardened difficulty
Complete all Campaign levels on Ultimate Badass difficulty
Complete Home
Complete Hope in Hadley's
Kill 5 Spitters without being damaged by acid
Set up a UA 571-C Remote Sentry
Complete Rampart
Collect all 12 Audio Logs
Complete One Bullet without setting off the alarm
Earn Rank 20 as a Marine
Track 100 hostile targets with the Motion Tracker
Purchase all Upgrades for a weapon
Have another player join your party
Complete The Raven
Arm the emergency release and escape in under 2:30 on Sulaco Falls
Complete Sulaco Falls
Survive a Close Encounter with a Facehugger
Edit a Marine Loadout
Complete a Challenge
Complete Distress
Collect a Legendary Weapon
Collect a Dog Tag
Kill 10 Xenomorphs that are using vents
Rescue a teammate from a Close Encounter
Earn Rank 2 as a Marine
Kill a Xenomorph with a shotgun at very close range
Revive a teammate
Kill a Xenomorph climbing on the walls or ceiling
Complete Stasis Interrupted on Ultimate Badass
Complete Stasis Interrupted on any difficulty
Find All Stasis Interrupted Audio Logs
Destroy all samples in the labs of the Queen module
Survive the Queen escape
Escape the FTL ship
Kill all the Lurkers in Sulaco engineering
Sever the umbilical without missing a shot
Destroy the Legato
Find your family