Two Birds with One Stone
Kill 2 enemies with a single bullet in Single Player or Special Ops.
2/20/2011
7:18:22 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.
2/20/2011
6:40:09 PM
Common 54.5%
Safety First - Shoot off 100 helmets
Shoot off 100 Helghast helmets during battle
5/8/2009
11:33:21 PM
Rare 35.9%
Defensive Fighter - Kill 30 Helghast with an emplaced weapon
Kill 30 Helghast using the StA3 fixed gun emplacement
4/19/2009
4:53:16 PM
Rare 45.1%
I miss the Cold War
Outside Science Center, defeat each sniper guard with one shot.
2/21/2009
6:58:26 PM
Rare 27.5%
