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