Complete the following achievements to unlock Xbox Live Gamerscore points.

Achievement	How to unlock
Brute Force ( 15 points )	Kill a Brute.
Don't get cocky, Kid ( 10 points )	Survive theADS Canon with over 50% Shield strength remaining.
Exterminator ( 15 points )	Kill the Leviathan.
Get off my ship! ( 15 points )	Kill the Slug Boss.
Kickin' it ( 10 points )	Defend the Lurker grab attack 10 times.
Mindless Prey ( 30 points )	Kill the Hive Mind.
Playing Catch ( 10 points )	TK catch a Brute or Leviathan Pod.
Slugger ( 10 points )	Kill the Slug Boss with more than 50% Shield strength remaining.