Complete the following achievements to unlock Xbox Live Gamerscore points.

Achievement	How to unlock
Allied Assault (50 points)	Assist your allies in breaking through the barrier in the "Allied Assault" mission.
Among the Elite (50 points)	Send a solider of each class into elite training.
Arms Race (50 points)	Create all of the Volm weapons in the Workshop.
Chaos Theory (50 points)	Learn how to craft the Chaotic Scrambler in the Workshop.
Checkmate (50 points)	Defeat Mech-Leg to claim victory over the Espheni in the final story mission.
Don't Die on Me (50 points)	Learn how to create defibrillators in the Infirmary.
Essential Maintenance (50 points)	Clear out the air vents in the "Crawly Crematorium" mission.
Firestarter (50 points)	Start manufacturing the Incendiary Rocket and Incendiary Shells.
Got the Munchies (50 points)	Collect the food supplies in the "Scrounging for Scraps" mission.
Harbormaster (50 points)	Defeat all of the enemies in the "Shipyard Slaughter" mission.
Healing Hands (50 points)	Unlock Field Medic Training.
High Class (50 points)	Reach level 10 with all unit classes.
House Call (50 points)	Rescue the doctor in the "Medical Emergency" mission.
Not Too Shabby (50 points)	Learn how to make medium armor in the Workshop.
Pope's Payback (50 points)	Help Pope destroy dormant Mech units in the "Planned Obsolescence" mission.
Somebody Set Up Us the Bomb (50 points)	Deactivate the Espheni bombs in the "Defuse the Situation" mission.
Strength in Numbers (50 points)	Maximize your squad and roster size by unlocking all of the available slots.
There Are Four Lights (50 points)	Put all of the devices in the water in the "Deploy the Buoys" mission.
Toxic Avenger (50 points)	Collect the toxic waste in the "Fighting Dirty" mission.
Unlock Your Potential (50 points)	Learn how to train elite soldiers in the Armory.