Won a duel without taking damage

Discovered The Scrapyard

Killed an enemy with the Siren's action skill

Reached proficiency level 10 with any weapon type

Applied an elemental artifact

Equipped a class mod for your character

Killed 5 Rakk in under 10 seconds

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

Sold 50 guns to a shop

Killed 25 enemies with explosive weapons

Killed 15 enemies with the Soldier's action skill

Rescued a groupmate from death in a co-op game