Ability First Kill
Reward: 5 Points
Objective: Perform a kill using your ability for the first time in challenge mode

Ability Master
Reward: 10 Points
Objective: Perform 10 frags in a row with only your abilities in challenge mode

All Rewards Unlocked
Reward: 30 Points
Objective: Unlock all rewards

Bishop Campaign Completed
Reward: 20 Points
Objective: Complete all challenges in the Bishop Campaign

BlackOp Campaign Completed
Reward: 20 Points
Objective: Complete all challenges in the BlackOp Campaign

Challenges Master
Reward: 10 Points
Objective: Win Death Match without being killed in a challenge

First Blood
Reward: 5 Points
Objective: Try to be the first one that kills an enemy in challenge mode

Guardian Campaign Completed
Reward: 20 Points
Objective: Complete all challenges in the Guardian Campaign

Marathon
Reward: 35 Points
Objective: Score 1,000,000 points

Tutorials Completed
Reward: 5 Points
Objective: Complete the tutorial for each character

Multiplayer:

ArenaMaster
Reward: 20 Points
Objective: Perform 5 kills without being killed in a ranked match

Slayer
Reward: 20 Points
Objective: Get 100 kills in Xbox LIVE ranked match