Accomplish the indicated achievement to get the number of Xbox Live Gamerscore points.

Achievement	How to unlock
Ability First Kill ( 5 points )	Perform a kill using your ability for the first time in challenge mode.
Ability Master ( 10 points )	Perform 10 frags in a row with only your abilities in challenge mode.
All Rewards Unlocked ( 30 points )	Unlock all rewards.
ArenaMaster ( 20 points )	Perform 5 kills without being killed in a ranked match.
Bishop Campaign Completed ( 20 points )	Complete all challenges in the Bishop Campaign.
BlackOp Campaign Completed ( 20 points )	Complete all challenges in the BlackOp Campaign.
Challenges Master ( 10 points )	Win Death Match without being killed in a challenge.
First Blood ( 5 points )	Try to be the first one that kills an enemy in challenge mode.
Guardian Campaign Completed ( 20 points )	Complete all challenges in the Guardian Campaign.
Marathon ( 35 points )	Score 1,000,000 points.
Slayer ( 20 points )	Get 100 kills in Xbox LIVE ranked match.
Tutorials Completed ( 5 points )	Complete the tutorial for each character.