Unnecessary Roughness
Use a riot shield to beat down an enemy in Single Player or Special Ops.
11/30/2009
9:28:47 PM
Rare 34.5%
Two Birds with One Stone
Kill 2 enemies with a single bullet in Single Player or Special Ops.
11/29/2009
4:31:48 PM
Common 57.6%
Three-some
Kill at least 3 enemies with a single shot from a grenade launcher in Single Player or Special Ops.
11/29/2009
3:55:26 PM
Common 54.5%