Knock-knock
Kill 4 enemies with 4 shots during a slow-mo breach in Single Player or Special Ops.
1/15/2010
11:58:02 PM
Rare 15.2%
Operative
Earn all 3 stars in at least 10 different Special Op missions.
1/5/2010
6:41:33 PM
Very Rare 5.6%
Operational Asset
Earn all 3 stars in at least 5 different Special Op missions.
1/5/2010
4:44:07 PM
Very Rare 9.7%
It Goes to Eleven
Earn at least 1 star in 11 different Special Op missions.
11/18/2009
6:43:34 PM
Rare 17.0%
The Price of War
Complete the single player campaign on Hardened or Veteran Difficulty.
11/15/2009
6:32:43 PM
Very Rare 5.8%
Drive By
Kill 20 enemies in a row while driving a vehicle in Single Player or Special Ops.
11/15/2009
6:25:47 PM
Very Rare 8.1%
The Harder They Fall
Kill 2 rappelling enemies in a row before they land on their feet in Single Player or Special Ops.
11/15/2009
6:11:02 PM
Rare 30.0%
Out of the Frying Pan...
Complete the mission in the airplane graveyard.
11/15/2009
5:56:03 PM
Rare 33.0%
