[quote]Ive done everything. Finished the seasonal story, the specimen quests and picked up the quest from BANSHEE. Ive literally done every secret in the mission, then completed the expert mission each time. And the first Catalyst still won't drop. Gone through this mission 22 times total. It's so depressing...[/quote] If the 2 requirements on the quests for the catalysts are complete, have you tried going back to banshee?