Good Samaritan
Knock down a security guard chasing another skater in career mode
1/6/2011
9:08:52 PM
Rare 22.1%
Grasshopper
Perform one grass gap of at least 10 meters or 30 feet in career mode
1/4/2011
7:27:19 PM
Rare 39.1%
Keeping it Clean
Complete a Race in a Machine with all body panels still attached to your vehicle
1/3/2011
3:38:15 PM
Rare 28.6%
Knock-knock
Kill 4 enemies with 4 shots during a slow-mo breach in Single Player or Special Ops.
12/30/2010
11:35:26 PM
Rare 15.2%
Some Like it Hot
Kill 6 enemies in a row using a thermal weapon in Single Player or Special Ops.
12/16/2010
10:01:25 PM
Rare 39.8%
Experimental
Play 5 consecutive Head to Head Ranked Matches with different teams
12/12/2010
11:48:57 AM
Rare 10.9%
Ten plus foot-mobiles
Kill at least 10 enemies with one Predator missile in Single Player or Special Ops.
12/11/2010
11:31:55 PM
Rare 45.1%
Two Birds with One Stone
Kill 2 enemies with a single bullet in Single Player or Special Ops.
12/10/2010
3:38:00 PM
Common 57.6%
No Rest For the Wary
Knife an enemy without him ever knowing you were there in Single Player or Special Ops.
12/10/2010
3:12:52 PM
Rare 25.3%