Revenge!
Gain the loyalty of the mercenary ("Cerberus Pack" downloadable content)
3/8/2011
2:25:48 PM
Rare 30.5%
Master at Arms
Kill enemies with 5 different heavy weapons during the game
3/5/2011
8:02:22 PM
Rare 28.1%
Operative
Complete a mission discovered by scanning an unexplored world
3/4/2011
11:25:58 PM
Common 60.2%