Frozen in Time
Kill 50 Necromorphs while they are in Stasis (single player only)
4/13/2011
7:58:39 PM
Rare 28.0%
Mission Accomplished
Save humanity throughout the galaxy from certain annihilation
4/10/2011
1:35:30 AM
Rare 45.3%
Long Service Medal
Complete Mass Effect 2 twice, or complete it once with a character imported from Mass Effect 1
4/10/2011
1:35:13 AM
Rare 31.0%
Master at Arms
Kill enemies with 5 different heavy weapons during the game
4/10/2011
1:24:30 AM
Rare 28.1%
The Collector
Buy every weapon off the walls in a single Zombies game.
4/3/2011
4:54:42 AM
Ultra Rare 1.6%