Kill 20 enemies with explosives in a single level.

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

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

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

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

Kill the power.

Infiltrate a cargo ship.

Reach Assault Rank 2 in multiplayer

Reach Rank 10 in multiplayer

Complete 25 Squad Orders in multiplayer

You have avenged Sammy and Ellis

You burned Remy Duvall on a cross