Kill the miniboss in Puerto Cálao.

Kill one of every enemy

Get 100 kills in deathmatch

Kill a teammate in co-operative multiplayer

Kill 4 enemies in 1 shot with the super shotgun

Take damage from an environmental hazard

Kill yourself and an enemy with your own rocket explosion

Cause an enemy to kill another enemy

Break stealth and re-enter stealth successfully

Pick a three pin lock in under 15 seconds

Find the Engraved Ring

Earn the high score in the archery game

Put a hat on your companion