Sky dive to safety on Veteran difficulty
Kill 2 enemies by blowing up a car in the single player campaign
Complete 'Heat' and 'The Sins of the Father' on Veteran difficulty
Corner Zakhaev's Son
Complete the cargo ship mockup in less than 20 seconds
Shoot down an enemy helicopter with an RPG in the single player campaign
Carry Cpt. MacMillian to safety
Complete 'All Ghillied Up' and 'One Shot, One Kill' on Veteran difficulty
Stab an injured crawling enemy
Survive a dog attack
Complete 'All Ghillied Up' without alerting any enemies
Find Al-Asad's safehouse
Complete 'Safehouse' on Veteran difficulty
Infiltrate a cargo ship
Complete 'Crew Expendable' on Veteran difficulty
Complete 'F.N.G.'
Operate an AC-130 gun ship
Find 15 enemy intel items
Find 30 enemy intel items
Complete the game on any difficulty
Save Pvt. Roycewicz on the stairs
Destroy all the TVs showing Al-Asad's speech
Save the farmer
Kill 5 enemies with one shot while in the AC-130 gunship
Kill the power
Complete the game on Hardened or Veteran difficulty
Complete 'Blackout' on Veteran difficulty
Complete 'Charlie Don't Surf' on Veteran difficulty
Complete 'The Bog' and 'War Pig' on Veteran difficulty
Complete 'Hunted' and 'Death From Above' on Veteran difficulty
Complete 'Shock and Awe' on Veteran difficulty
Protect 'War Pig', the Abrams tank
Complete 'Ultimatum', 'All In', and 'No Fighting in the War Room' on Veteran difficulty
Complete 'Game Over' on Veteran difficulty
Kill an enemy while blinded by a flashbang in the single player campaign
Kill 4 enemies in a row with headshots in the single player campaign
Kill 3 enemies in a row with your knife in the single player campaign