Invincible
Complete a level without having to use a single Power-up.
11/26/2009
5:44:12 AM
Common 56.2%
Some Like it Hot
Kill 6 enemies in a row using a thermal weapon in Single Player or Special Ops.
11/14/2009
11:33:28 PM
Rare 39.8%
No Rest For the Wary
Knife an enemy without him ever knowing you were there in Single Player or Special Ops.
11/13/2009
5:29:22 AM
Rare 25.3%
Out of the Frying Pan...
Complete the mission in the airplane graveyard.
11/13/2009
5:24:20 AM
Rare 33.0%
Unnecessary Roughness
Use a riot shield to beat down an enemy in Single Player or Special Ops.
11/12/2009
5:47:29 AM
Rare 34.5%
Ten plus foot-mobiles
Kill at least 10 enemies with one Predator missile in Single Player or Special Ops.
11/11/2009
6:19:19 AM
Rare 45.1%