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

Discovered The Scrapyard

Create a goal for a Friend with a cross

Reached proficiency level 10 with any weapon type

Earned level 20

Killed Sledge

Mastered the technology of Pandora

Killed 25 enemies with shock weapons

Sold 50 guns to a shop

Killed 25 enemies with explosive weapons

Killed 5 Rakk in under 10 seconds

Killed 15 enemies with the Soldier's action skill

Earned level 5