Kill 5 enemies with one shot while in the AC-130 gunship.

Kill at least 3 rappelling enemies in a single rope.

Kill all 4 tanks on the overpass with the Javelin missile in 'The Bog'.

Kill 2 enemies by blowing up a car in the single player campaign.

Kill the power.

Kill 4 enemies in a row with headshots in the single player campaign.

Complete any level without reloading your weapon (excluding 'The Coup' and 'Aftermath').

Infiltrate a cargo ship.

Stab an injured crawling enemy.

Kill an enemy while blinded by a flashbang in the single player campaign.

Complete the cargo ship mockup in less than 19 seconds.

Collect 2000 Precursor Orbs

Complete the mission "Long Way To The Top".