Unnecessary Roughness
Use a riot shield to beat down an enemy in Single Player or Special Ops.
2/6/2011
10:51:09 AM
Rare 34.5%
Downed but Not Out
Kill 4 enemies in a row while downed in Special Ops.
12/31/2010
7:24:31 PM
Very Rare 5.8%
Ten plus foot-mobiles
Kill at least 10 enemies with one Predator missile in Single Player or Special Ops.
12/30/2010
2:49:22 PM
Rare 45.1%
It Goes to Eleven
Earn at least 1 star in 11 different Special Op missions.
12/21/2010
11:17:07 AM
Rare 17.0%
Two Birds with One Stone
Kill 2 enemies with a single bullet in Single Player or Special Ops.
12/18/2010
10:39:55 AM
Common 57.6%
Some Like it Hot
Kill 6 enemies in a row using a thermal weapon in Single Player or Special Ops.
12/18/2010
10:37:56 AM
Rare 39.8%
The Harder They Fall
Kill 2 rappelling enemies in a row before they land on their feet in Single Player or Special Ops.
12/18/2010
10:33:20 AM
Rare 30.0%
No Rest For the Wary
Knife an enemy without him ever knowing you were there in Single Player or Special Ops.
12/18/2010
8:12:04 AM
Rare 25.3%
Three-some
Kill at least 3 enemies with a single shot from a grenade launcher in Single Player or Special Ops.
12/18/2010
7:53:47 AM
Common 54.5%