Complete the following achievements to unlock Xbox Live Gamerscore points.

Achievement	How to unlock
Any Means necessary (40 points)	Get 50 kills with the electric fence and fire traps in a single game.
Cabin Fever (10 points)	Make it to the cabin.
City Dweller (20 points)	Made it to the city.
Completionist (25 points)	Complete all Extinction challenges and escape.
Made it Out Alive (20 points)	Escape 1st time.
No Man Left (20 points)	Escape with all four players.
Sprinter (20 points)	Reach the exfil chopper with 1 minute and 30 seconds or more remaining on the clock.
Throttled Escape (10 points)	Escape using a relic.
Trash Picker (20 points)	Scavenge 40 items in a single game.