Knock-knock
Kill 4 enemies with 4 shots during a slow-mo breach in Single Player or Special Ops.
12/14/2009
7:34:37 AM
Rare 15.2%
The Price of War
Complete the single player campaign on Hardened or Veteran Difficulty.
12/7/2009
5:07:16 PM
Very Rare 5.8%
Out of the Frying Pan...
Complete the mission in the airplane graveyard.
12/7/2009
8:04:41 AM
Rare 33.0%
Some Like it Hot
Kill 6 enemies in a row using a thermal weapon in Single Player or Special Ops.
11/30/2009
8:09:10 AM
Rare 39.8%
Ten plus foot-mobiles
Kill at least 10 enemies with one Predator missile in Single Player or Special Ops.
11/29/2009
5:19:09 PM
Rare 45.1%
Two Birds with One Stone
Kill 2 enemies with a single bullet in Single Player or Special Ops.
11/29/2009
9:35:19 AM
Common 57.6%
Three-some
Kill at least 3 enemies with a single shot from a grenade launcher in Single Player or Special Ops.
11/29/2009
8:25:34 AM
Common 54.5%
Completed Chapter 3 - 2
Complete Chapter 3 - 2 on any difficulty setting.
11/12/2009
9:51:28 AM
Common 52.8%
Completed Chapter 3 - 1
Complete Chapter 3 - 1 on any difficulty setting.
11/7/2009
11:28:26 AM
Common 55.1%
Completed Chapter 2 - 3
Complete Chapter 2 - 3 on any difficulty setting.
11/7/2009
6:23:03 AM
Common 58.0%