Complete 'F.N.G.'.

Infiltrate a cargo ship.

Kill the power.

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

Protect 'War Pig', the Abrams tank.

Operate an AC-130 gun ship.

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

Save Pvt. Roycewicz on the stairs.

Kill 20 enemies with explosives in a single level.

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

Find Al-Asad's safehouse.

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

Kill at least 3 rappelling enemies in a single rope.

Carry Cpt. MacMillan to safety.

Survive a dog attack.

Corner Zakhaev's Son.

Complete the game on any difficulty.

Save the farmer.

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

Stab an injured crawling enemy.

Complete 'All Ghillied Up' without alerting any enemies.

Complete the cargo ship mockup in less than 19 seconds.

Complete 'Crew Expendable' on Veteran difficulty.

Complete 'Blackout' on Veteran difficulty.

Shoot down an enemy helicopter with an RPG in the single player campaign.

Find 15 enemy intel items.

Complete 'Charlie Don't Surf' on Veteran difficulty.

Complete the game on Hardened or Veteran difficulty.

Kill 3 enemies in a row with your knife in the single player campaign.

Complete 'Hunted' and 'Death From Above' on Veteran difficulty.

Complete 'The Bog' and 'War Pig' on Veteran difficulty.

Complete 'Shock and Awe' on Veteran difficulty.

Complete 'Safehouse' on Veteran difficulty.

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Complete 'All Ghillied Up' and 'One Shot, One Kill' on Veteran difficulty.

Get a kill with each type of handheld gun, explosive and launcher in the single player campaign.

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

Complete 'Game Over' on Veteran difficulty.

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

Find the Desert Eagle in 'Crew Expendable' and kill 5 enemies with it.

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

Find 30 enemy intel items.

Alert the enemy helicopter in 'All Ghillied Up' and take it down.

Find and use the hidden cache in 'Heat'.

Beat IW best time on the Ship Training course in 'F.N.G.' (15.1 sec).

Complete any level using only the knife to kill enemies.

Sky dive to safety on Veteran difficulty.

Kill 20 attack dogs with a knife.

Destroy 8 enemy helicopters in 'Heat'.

Destroy all the TVs showing Al-Asad's speech.