Experimental
Play 5 consecutive Online Head to Head Ranked matches using a different team
2/8/2010
3:02:28 PM
Rare 10.8%
Ten plus foot-mobiles
Kill at least 10 enemies with one Predator missile in Single Player or Special Ops.
1/22/2010
10:12:41 PM
Rare 45.1%
Knock-knock
Kill 4 enemies with 4 shots during a slow-mo breach in Single Player or Special Ops.
12/9/2009
9:46:37 PM
Rare 15.2%
Downed but Not Out
Kill 4 enemies in a row while downed in Special Ops.
12/9/2009
9:39:18 PM
Very Rare 5.8%
Three-some
Kill at least 3 enemies with a single shot from a grenade launcher in Single Player or Special Ops.
12/7/2009
6:42:09 PM
Common 54.5%
Professional
Earn all 3 stars in at least 15 different Special Op missions.
11/25/2009
9:46:02 AM
Ultra Rare 3.2%
Some Like it Hot
Kill 6 enemies in a row using a thermal weapon in Single Player or Special Ops.
11/15/2009
11:12:46 PM
Rare 39.8%
Out of the Frying Pan...
Complete the mission in the airplane graveyard.
11/14/2009
4:09:08 PM
Rare 33.0%
It Goes to Eleven
Earn at least 1 star in 11 different Special Op missions.
11/14/2009
2:35:12 PM
Rare 17.0%
Operative
Earn all 3 stars in at least 10 different Special Op missions.
11/14/2009
1:46:29 PM
Very Rare 5.6%
The Harder They Fall
Kill 2 rappelling enemies in a row before they land on their feet in Single Player or Special Ops.
11/13/2009
11:19:09 PM
Rare 30.0%
Operational Asset
Earn all 3 stars in at least 5 different Special Op missions.
11/13/2009
10:50:59 PM
Very Rare 9.7%