Knock-knock
Kill 4 enemies with 4 shots during a slow-mo breach in Single Player or Special Ops.
7/10/2010
1:52:34 PM
Rare 15.2%
Desperado
Kill 5 enemies in a row using 5 different weapons or attachments in Single Player or Special Ops.
4/17/2010
9:34:31 PM
Rare 21.2%
No Rest For the Wary
Knife an enemy without him ever knowing you were there in Single Player or Special Ops.
1/22/2010
3:27:27 AM
Rare 25.3%
The Price of War
Complete the single player campaign on Hardened or Veteran Difficulty.
1/3/2010
8:44:52 PM
Very Rare 5.8%
Unnecessary Roughness
Use a riot shield to beat down an enemy in Single Player or Special Ops.
12/27/2009
4:38:50 PM
Rare 34.5%
Ten plus foot-mobiles
Kill at least 10 enemies with one Predator missile in Single Player or Special Ops.
12/26/2009
11:56:08 PM
Rare 45.1%
Some Like it Hot
Kill 6 enemies in a row using a thermal weapon in Single Player or Special Ops.
12/26/2009
11:39:12 PM
Rare 39.8%
10 Years Too Late
Win 100 online battles. (ranked match or player match)
4/25/2009
3:00:24 AM
Ultra Rare 3.9%
Hard Fought Battles
Play 200 online battles. (ranked match or player match)
4/19/2009
8:10:31 PM
Ultra Rare 4.3%
