Complete all Wasteland Missions

Complete a Death Run in an Archangel

Clear all minefields

Destroy all scarecrows

Fly the balloon at every Vantage Outpost

Find 30 enemy intel items.

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

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

Complete any level using only the knife to kill enemies.

Complete 'Game Over' on Veteran difficulty.

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

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

Complete 'Safehouse' on Veteran difficulty.