Complete 'All Ghillied Up' without alerting any enemies.

Finish Operation: False Profits

Get all the eKart upgrades

Hijack a bus

Find Al-Asad's safehouse.

Kill 20 enemies with explosives in a single level.

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

Save the farmer.

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

Complete any level using only the knife to kill enemies.

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').