Firsties!
Not unlocked yetComplete the first main mission objective.
Twofer
Not unlocked yetKill two enemy vehicles with one rocket.
Pointdexter
Not unlocked yetScore at least 500,000 points in a single mission.
Dead Island
Not unlocked yetPurge the island of the dead.
Pedro 4 Prez
Not unlocked yetFind and eliminate Pedro in all locations.
Lord of the Skies
Not unlocked yetKill 100 enemy helicopters.
Demolicious
Not unlocked yetDestroy 1,000 buildings.
Team Playa
Not unlocked yetComplete a mission in co-op mode.
Parselmouth
Not unlocked yetComplete the 'Stomp The Snake' mission on expert difficulty level in co-op mode.
Rock It Man
Not unlocked yetComplete a (non-tutorial) mission using only rockets.
Gun Guru
Not unlocked yetComplete a (non-tutorial) mission using only the machine gun.
High Five!
Not unlocked yetDestroy your chopper with your own guided rocket.
Crate Soulmate
Not unlocked yetCollect all 25 crates hidden in various locations.
Quickie
Not unlocked yetComplete a (non-tutorial) mission in 8 minutes or less.
Kamikaze
Not unlocked yetKill 10 vehicles by smashing into them.
Bossfight Like A Boss
Not unlocked yetKill a boss/miniboss by smashing into it.
Obtainer of the Lost Ark
Not unlocked yetLocate and winch up the Lost Ark.
Get to the choppa!
Not unlocked yetComplete at least one mission with each helicopter.
Courage Wolf
Not unlocked yetComplete all levels at least on normal difficulty.
Star Wolf
Not unlocked yetGet all stars in all missions.