Complete the following achievements to unlock Xbox Live Gamerscore points.

Achievement	How to unlock
Braaaaaaaaaaaaains! ( 25 points )	Complete the "Braaaaaaaaaaaaains!" mission.
House of the Ned ( 25 points )	Complete the "House of the Ned" mission.
Jakobs Fodder ( 25 points )	Complete the "Jakobs Fodder" mission.
Ned's Undead, Baby ( 49 points )	Killed Ned. Again.
Night of the Living Ned ( 1 point )	Killed Ned...sort of.