Complete the following achievements to unlock Xbox Live Gamerscore points.

Achievement	How to unlock
Complete Warrior (30 points)	Get a kill with the following weapons in a single life: Assault Rifle, Jet, Tank.
Gunslinger (20 points)	Get 10 kills with each of the ten Back to Karkand weapons.
Jaws (20 points)	Take a swim in the Oman Hotel swimming pool.
Like a Boss (30 points)	Get a kill with the skid loader.
Third Tour (20 points)	Get a kill with each of the following vehicles: the BTR-90, DPV and F-35.