Three-some
Kill at least 3 enemies with a single shot from a grenade launcher in Single Player or Special Ops.
11/11/2009
8:58:31 PM
Common 54.5%
Ten plus foot-mobiles
Kill at least 10 enemies with one Predator missile in Single Player or Special Ops.
11/11/2009
5:24:59 PM
Rare 45.1%
And They'll Tell Two Friends
Played in a co-op game with either an employee of Gearbox or someone who had this trophy
10/25/2009
5:54:10 AM
Rare 32.1%
Gas Powered
Complete an entire arena, getting every kill with the Chainsaw
10/24/2009
7:59:25 PM
Common 63.0%
More the Merrier
Kill 10 or more zombies at the same time in any game mode
10/22/2009
12:59:45 AM
Common 81.1%
Interior Decorator
Kill 25 zombies in any game mode using environmental hazards
10/22/2009
12:58:20 AM
Common 80.1%
Environmental Awareness
Kill a zombie using an environmental hazard in any game mode
10/22/2009
12:45:58 AM
Common 91.8%
