Dude took less than 2 hours to get all of the BD catalysts. The stupid RNG is doing the Sundered Doctrine dungeon 30 times but you don't have the exotic drop yet because of bad rng but you have the catalyst unlocked on all three characters quests from the quests you completed with your friends who now have the exotic and catalyst and don't want to run it anymore so now you're doing it on lfg .