Kill a zip-lining enemy player in multiplayer.

Find 75% of all documents.

Fully mod and completely upgrade any weapon.

Collect 5000 pieces of salvage.

Force an enemy to drop dynamite that kills two people when exploding.

Kill and loot 10 small animals (rabbits, chickens, rats).

Kill 40 enemies with the shotgun.

Perform 50 headshot kills in the single player campaign.

Shoot a bundle of dynamite out of the air.

Collect 25% of all relics.

Find 25% of all documents.

Complete one optional tomb.