Heal yourself in combat 3 times

Stealth kill an enemy while they are having a conversation

Survive the avalanche

Translate a Monolith

Complete the game.

Find 75% of all documents.

Find 75% of GPS caches.

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

Kill 75 enemies with the rifle.

Kill 35 enemies with the pistol.

Perform 15 finishers.

Perform 50 headshot kills in the single player campaign.

Kill 50 enemies with the bow.