Complete the following achievements to unlock Microsoft Gamerscore points.

Achievement	How to unlock
Addict (75 points)	Play 100 online matches.
Creeper (75 points)	Get 10 melee kills.
Duo (10 points)	Play an online Duo Match.
Duo Win (15 points)	Win an online Duo Match.
Expert (15 points)	Get 25 Career Kills.
Explosive (75 points)	Get a kill with a frag grenade or gas can.
Five and Dime (15 points)	Play 50 online matches.
Flak (10 points)	Get a kill with a shotgun.
From Downtown (75 points)	Get a kill at a range of greater than 500 meters.
Gunslinger (15 points)	Get a kill with a pistol.
Hand Cannon (75 points)	Get a kill with the 686 at a range of greater than 50 meters.
Longshot (75 points)	Get a kill at a range of greater than 250 meters.
Lucky (15 points)	Get a melee kill.
Medic (10 points)	Revive a teammate.
Newb (10 points)	Get your first kill.
Pro (15 points)	Get 50 Career Kills.
Quints (75 points)	Get 5 Kills in a single Online Match.
Serial (75 points)	Get 100 Career Kills.
Series (10 points)	Play 10 online matches.
Silent But Deadly (75 points)	Get a kill with a gas grenade or toxin can.
Solo (10 points)	Play an online Solo Match.
Solo Win (15 points)	Win an online Solo Match.
Spray and Pray (10 points)	Get a kill with an SMG.
Squad (10 points)	Play an online Squad Match.
Squad Win (15 points)	Win an online Squad Match.
Surgeon (10 points)	Revive a teammate 10 times.
Think Fast (15 points)	Get a kill within 30 seconds of touching down from your parachute.
Triple Play (75 points)	Get 3 melee kills in a single match.
Trips (15 points)	Get 3 Kills in a single Online Match.
Veteran (10 points)	Get 10 Career Kills.