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

Purchase all skills in one category.

Find 25% of GPS caches.

Loot 200 enemies.

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

Kill 35 enemies with the pistol.

Perform 50 headshot kills in the single player campaign.

Find 25% of all documents.

Collect first treasure or mystery.

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

Complete one optional tomb.

Score a x10 multiplier in a Story level.

Score a x5 multiplier in a Story level.