Complete the following achievements to unlock Xbox Live Gamerscore points.

Achievement	How to unlock
Big Bling (50 points)	Equip Your First Tier 6 Item in Multiplayer.
No, It's Too Perilous (50 points)	Survive For 7 Minutes in Firestorm (Survival Mode).
Oh, Let Me Have a Little Bit of Peril? (50 points)	Survive For 7 Minutes in Dockyard (Survival Mode).
We'll Never Survive (50 points)	Play a Round of Survival Mode.
You Were In Terrible Peril (50 points)	Survive For 7 Minutes in Courtyard (Survival Mode).