I've included the locations of where each disc can be found. If you finished a level and did not pick up the disc, they are available for purchase from The Healer. If there is no location listed, then it is automatically give to you after certain criteria are met. Some courses may be obtained but unusable because of insufficient credits or you may have to complete previous courses first.
SURVIVAL 501 [Muir Island 2] Credits Required: 79 Recommended Level: 26 Time Limit: 3:00 Objective: Survive for three minutes Reward: 4 credits
SURVIVAL 502 [New York City Riots] Credits Required: 80 Recommended Level: 27 Time Limit: Unknown Objective: Survive for three minutes Reward: 4 credits
SABOTAGE 501 [Morlock Tunnels 3] Credits Required: 86 Recommended Level: 28 Time Limit: 1:00 Objective: Destroy all four alarm boxes Reward: 5 credits
QUALIFYING EXAM 500 [Sentinel Factory] Credits Required: 91 Recommended Level: 29 Time Limit: 3:00 Objective: Danger level must not exceed 10.00 Reward: Grade complete
CHALLENGE - JUBILEE [New York City Riots] Credits Required: 0 Recommended Level: 25 Time Limit: 2:00 Objective: Defeat 50 enemies, destroy all four generators Reward: Hypnotic Skyburst
CHALLENGE - GAMBIT [Morlock Tunnels 3] Credits Required: 0 Recommended Level: 27 Time Limit: 2:00 Objective: Defeat 20 enemies and four Marrow Lieutenants Reward: Dead Man's Hand
CHALLENGE - EMMA FROST [Astral Plane 3] Credits Required: 0 Recommended Level: 28 Time Limit: None Objective: Destroy all six statues Reward: Diamond's Aura
CHALLENGE - PSYLOCKE [Asteroid M] Credits Required: 0 Recommended Level: 29 Time Limit: 2:00 Objective: Defeat Sabretooth and Mystique Reward: Heart of the Assassin
