Complete the game.

Complete all optional tombs.

Purchase all skills in one category.

Find 75% of all documents.

Kill 75 enemies with the rifle.

Kill 25 unaware enemies.

Perform 50 headshot kills in the single player campaign.

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

Perform 15 finishers.

Find 25% of GPS caches.

Complete one optional tomb.

Fully upgrade the Jackdaw.

Unlock all taverns.