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

Discovered Krom's Canyon

Discovered The Scrapyard

Reached proficiency level 10 with any weapon type

Killed 25 enemies with shock weapons

Killed 25 enemies with corrosive weapons

Won a duel against another player

Emerged victorious from an arena match

Rescued a groupmate from death in a co-op game

Completed all missions in the Arid Badlands

Killed 25 enemies by ramming them with any vehicle

Killed Sledge