Complete the following achievements to unlock Microsoft Gamerscore points.

Achievement	How to unlock
Alighting Postponed (100 points)	Destroy 30 pontoons.
Army Of Me (100 points)	Get all upgrades.
Get To Da Choppa! (50 points)	Call the helicopter support 30 times.
Get Your Blanket! (100 points)	Let 100 pontoons land on the shore.
Golden shores (50 points)	Cleared HAGÅTÑA.
Invasion Thwarted (100 points)	Finish the game.
No Love Boat (50 points)	Cleared Apra Harbor.
Patriot's Touch (50 points)	Fire 1000 rockets.
Smashing Pumpkins (100 points)	Deliver 100 headshots.
Son of a Beach (50 points)	Cleared Gun Beach.
The Destroyer (100 points)	Kill 30,000 Invaders.
The Red Sky (50 points)	Cleared Andersen Air Force Base.
What A Lovely Day! (100 points)	Destroy 1000 vehicles.