Aliens: Colonial Marines achievements

32.00%

No Need For Alarm

Complete One Bullet without setting off the alarm

32.00%

Secreted from What?

Kill 5 Spitters without being damaged by acid

32.00%

Dragged Queen

Complete Home

33.00%

I Feel Safer Already

Have another player join your party

33.00%

Just a Grunt

Complete Hope in Hadley's

35.00%

Don't Count Me Out

Revive a teammate

36.00%

Still Got a Job to Do

Complete Rampart

38.00%

Adios, Muchachos

Gib two enemies at once

42.00%

Micro Changes in Air Density

Track 100 hostile targets with the Motion Tracker

44.00%

Quoth the Raven

Complete The Raven

46.00%

... But No Cigar

Rescue a teammate from a Close Encounter

47.00%

Let's Rock!

Kill 10 Xenomorphs in a game with the M56A2 Smart Gun