Achievements...
	Secret Achievements...

Complete the following achievements to unlock Xbox Live Gamerscore points.

Achievement	How to unlock
Crucible ( 5 points )	Clear the game on Normal in single player mode.
Enlistment ( 5 points )	Enter the Main Menu.
Mosquito Killer ( 10 points )	Kill 10 Mosquito enemies.
Onslaught ( 5 points )	Clear the game on Hard in single player mode.
Sandwich Man ( 10 points )	Kill 10 Sandwich enemies.
Snake Killer ( 10 points )	Kill 10 Snake enemies.
Valiant Warrior ( 20 points )	Kill 100 targets in CO-OP Mode.
Wings of Friendship ( 5 points )	Play a CO-OP Mode game.

Complete the following achievements to unlock Xbox Live Gamerscore points.

Achievement	How to unlock
Like taking candy from a baby (20 points)	Occupied all control points in Control Point mode.
Gold Hammer (30 points)	Cleared the game on Normal difficulty or harder without losing a life.
May Day King (30 points)	Got shot down 256 times.
Ruler of the Universe (50 points)	Earned every rank.