Complete the following achievements to unlock Microsoft Gamerscore points.

Achievement	How to unlock	Points
Ace	Finished The Long Push.	40
Base Rat	Found all of the Golden Cubes.	50
Booby-Trap	Finished Netopyr.	50
Brass Hat	Completed All German Levels and Ration Tickets.	100
Coffin Nails	Defeated the Rail Gun.	50
Cosmic Cavalcade	Survived until Round nine on Invasion!	10
Curiosities	Found all of the Platinum Cubes.	50
Fire in the Hole	Guided a shell to its destination.	20
Flying Pig	Defeated the Zeppelin.	50
Foo Fighter	Shot down fourty UFOs with your P-51 Mustang.	20
Foot Slogger	Earned General Rank on any level.	20
Gone West	Got the Standard Bearer to the Flag Base.	10
Grass Cutter	Got a 40x blast combo.	50
Hand to Spade	Survived until Round eight on Creative Defense.	10
Jumped the Bags	Completed Level 1.	10
Land Ship	Defeated the K-Wagen.	50
Mr. Roboto	Defeated RoboBob.	100
Old Contemptible	Defeated the Tsar Tank.	50
Old Sweat	Defeated the Uber Tank.	50
Pickled Monkey	Won a Multiplayer Match on every level.	20
Pip, Squeak & Wilfred	Survived until Round five.	20
Rocketman	Found all of the Golden Rockets.	50
Shell-Shock	Survived until Round eight on Knights of the Air.	10
Spike Bozzled	Survived until Round nine on Siege of Maubeuge.	10
Sweet Fancy Adams	Earned an Overall Rank of General on all Campaign levels.	50
Throw a Seven	Completed any level in Elite mode.	50