Hard Finish
Finish story mode on Hard, without changing the difficulty setting.
7/2/2011
6:09:30 PM
Very Rare 6.6%
Drop Everything
Thunder Drop for a total distance of at least 500 meters.
6/30/2011
8:49:14 PM
Rare 43.2%
Oh, You've Done This Before
Take down 50 enemies by sticking them with a grenade.
6/28/2011
8:11:40 PM
Rare 14.3%
Road Kill
Take down 25 enemies while riding on the roof of a moving vehicle.
6/28/2011
12:13:02 AM
Rare 40.2%
