Complete 'Ultimatum', 'All In', and 'No Fighting in the War Room' on Veteran difficulty.

Complete 'Heat' and 'The Sins of the Father' on Veteran difficulty.

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

Carry Cpt. MacMillan to safety.

Complete 'All Ghillied Up' without alerting any enemies.

Find Al-Asad's safehouse.

Kill 20 enemies with explosives in a single level.

Find 15 enemy intel items.

Operate an AC-130 gun ship.

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

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

Save Pvt. Roycewicz on the stairs.