Complete the following achievements to unlock Xbox Live Gamerscore points.

Achievement	How to unlock
A Taste of their Own (20 points)	Eliminate 10 enemies using one of their own turrets.
Air Superiority (30 points)	Clear a safe path to the Terraformer for Hale.
Armored Cavalry (20 points)	Rescue the pinned-down Red Faction soldiers.
Bird of Prey (20 points)	Allow no Red Faction to survive your attacks on their mountain base.
Full of Malice (30 points)	Kill Mallus.
Nuke It from Orbit (30 points)	Wipe out the Cultist military camp.
Stick Around (20 points)	Get 20 kills with the Sharpshooter.
Swath of Destruction (30 points)	Reunite Sgt. Winters with the Red Faction.
Triple Threat (30 points)	End the three-way battle between yourself, the aliens, and the Cultists.
Wrecking Ball (20 points)	Get 20 kills with the Shard Cannon.