Knock-knock
Kill 4 enemies with 4 shots during a slow-mo breach in Single Player or Special Ops.
6/9/2010
8:16:09 PM
Rare 15.2%
Unnecessary Roughness
Use a riot shield to beat down an enemy in Single Player or Special Ops.
6/9/2010
5:56:23 PM
Rare 34.5%
It Goes to Eleven
Earn at least 1 star in 11 different Special Op missions.
3/13/2010
12:50:53 AM
Rare 17.0%
Some Like it Hot
Kill 6 enemies in a row using a thermal weapon in Single Player or Special Ops.
1/20/2010
8:57:57 PM
Rare 39.8%
Ten plus foot-mobiles
Kill at least 10 enemies with one Predator missile in Single Player or Special Ops.
1/4/2010
8:18:11 AM
Rare 45.1%
No Rest For the Wary
Knife an enemy without him ever knowing you were there in Single Player or Special Ops.
12/30/2009
3:46:22 AM
Rare 25.3%