Complete the first main mission objective.
Kill two enemy vehicles with one rocket.
Complete a (non-tutorial) mission using only the machine gun.
Destroy your chopper with your own guided rocket.
Collect all 25 crates hidden in various locations.
Complete a (non-tutorial) mission in 8 minutes or less.
Kill 10 vehicles by smashing into them.
Kill a boss/miniboss by smashing into it.
Locate and winch up the Lost Ark.
Complete at least one mission with each helicopter.
Complete all levels at least normal difficulty.
Get all stars in all missions.
Score at least 500.000 points in a single mission.
Purge the island of the dead.
Find and eliminate Pedro in all locations.
Kill 100 enemy helicopters.
Destroy 1,000 buildings.
Complete a mission in co-op mode.
Complete the 'Stomp The Snake' mission on expert difficulty level in co-op mode.
Complete a (non-tutorial) mission using only rockets.
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