Completed 5 missions in the Rust Commons

Completed 15 missions in co-op

Killed 25 enemies with explosive weapons

Defeated the Rakk Hive, the Vault Boss, Sledge, Krom, or Flynt in a co-op game

Sold 50 guns to a shop

Rescued a groupmate from death in a co-op game

Killed 25 enemies by ramming them with any vehicle

Won a duel against another player

Played in a co-op game with either an employee of Gearbox or someone who had this trophy

Killed 15 enemies with the Berserker's action skill

Discovered Skag Gully

Destroy 200 walls

Use Auto Injector 50 Times