Fully mod and completely upgrade any weapon.

Kill and loot 10 flying animals (crows and gulls).

Kill 40 enemies with the shotgun.

Kill all 3 Ottoman officers in Young Men's Work with melee kills in the campaign

Kill 5 enemies by using dynamite in the campaign

Collect 5000 pieces of salvage.

Complete one optional tomb.

Kill 25 unaware enemies.

Kill FeeFee the crab.

Perform 50 headshot kills in the single player campaign.

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

Perform 15 finishers.

Kill 50 enemies with the bow.