Complete the following achievements to unlock Microsoft Gamerscore points.

Achievement	How to unlock
A Few Skirmishes (50 points)	Play 10 Matches.
Elite (100 points)	Score 10m Points.
Go To Hell (50 points)	Kill 100 Enemies.
Humanity Will Last (100 points)	End Game.
Just The Apocalypse (150 points)	Kill 10000 Enemies.
Legend (150 points)	Score 100m Points.
Newcomer (50 points)	Score 100k Points.
Steel Nightmare (100 points)	Kill 1000 enemies.
War Addict (150 points)	Play 1000 Matches.
We're Still In Campaign (100 points)	Play 100 Matches.