Look out for yourself, no matter the consequences

Find 75% of all documents.

Purchase all skills in one category.

Complete a predator encounter without ever being spotted in the Main Story

Loot 200 enemies.

Kill 35 enemies with the pistol.

Find the Black Mask

Collect 5000 pieces of salvage.

Kill 25 unaware enemies.

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

Defeat Deathstroke

Perform 50 headshot kills in the single player campaign.

Complete one optional tomb.