Complete the following achievements to unlock Xbox Live Gamerscore points.

Achievement	How to unlock
Fluffer ( 35 points )	Completed the Ultor Exposed mission arc.
Meta-Gamer ( 20 points )	Play the Co-op Mission game once.
MVP ( 25 points )	Win the Co-op competitive mission game 5 times.
Party Time ( 25 points )	Host or play in a party match on Xbox LIVE.
Phone Sex ( 20 points )	Called Tera as a homie.