Unnecessary Roughness
Use a riot shield to beat down an enemy in Single Player or Special Ops.
11/15/2009
4:06:05 PM
Rare 34.5%
Some Like it Hot
Kill 6 enemies in a row using a thermal weapon in Single Player or Special Ops.
11/11/2009
4:36:41 PM
Rare 39.8%
No Rest For the Wary
Knife an enemy without him ever knowing you were there in Single Player or Special Ops.
11/11/2009
3:27:59 PM
Rare 25.3%
Two Birds with One Stone
Kill 2 enemies with a single bullet in Single Player or Special Ops.
11/11/2009
3:17:27 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.
11/11/2009
3:10:25 PM
Common 54.5%
The Cleaner
Destroy 10 Military Bases or Infected Hives in New York City.
9/29/2009
6:27:41 PM
Rare 39.4%
