No Rest For the Wary
Knife an enemy without him ever knowing you were there in Single Player or Special Ops.
6/11/2010
5:31:59 PM
Rare 25.3%
Knock-knock
Kill 4 enemies with 4 shots during a slow-mo breach in Single Player or Special Ops.
5/29/2010
6:50:22 PM
Rare 15.2%
Operational Asset
Earn all 3 stars in at least 5 different Special Op missions.
5/29/2010
5:26:11 PM
Very Rare 9.7%
Downed but Not Out
Kill 4 enemies in a row while downed in Special Ops.
5/29/2010
4:26:08 PM
Very Rare 5.8%
It Goes to Eleven
Earn at least 1 star in 11 different Special Op missions.
5/24/2010
6:23:54 PM
Rare 17.0%
Cut Your Teeth
You were successfully promoted up a rank in multiplayer.
12/26/2009
3:36:35 PM
Rare 18.8%
Out of the Frying Pan...
Complete the mission in the airplane graveyard.
12/19/2009
6:25:02 PM
Rare 33.0%
Unnecessary Roughness
Use a riot shield to beat down an enemy in Single Player or Special Ops.
12/18/2009
3:13:24 PM
Rare 34.5%
Some Like it Hot
Kill 6 enemies in a row using a thermal weapon in Single Player or Special Ops.
12/18/2009
3:00:24 PM
Rare 39.8%
Ten plus foot-mobiles
Kill at least 10 enemies with one Predator missile in Single Player or Special Ops.
12/16/2009
6:44:05 PM
Rare 45.1%