Weaponsmith
Very rare1.5%All-the-thingsOptional
Killed at least one enemy with each weapon available in the game
Get at least one kill with every weapon in the game - pistols, revolvers, shotguns, assault rifles, the pneumatic Tikhar and Helsing, the flamethrower, Hellbreath, throwing knives and the rest. Buy or find each type from traders and blood one enemy with it. Spread over a couple of playthroughs; a weapon checklist helps you spot what you've missed.