Really you must not do the Atheon raid were Pretorians regain there health, only toe get ported, you get ported with a shield on you, Atheon doesn't die once his health drops, running through the portal dosent let you exit, shooting oracles dosent always kill em, and that is just during the Atheon portion I could right a book on the glitches in that raid alone don't let me get started on Crota or the strikes