So I just finished "the corrupted" mission (part of the malfeasance quest line) from the drifter, where he sends you looking for his "friend" Callum, another guardian. So we find out that Callum is dead, killed by a golden gun (..Shin Malphur perhaps?) in an ascendant realm. we pull audio of final moments from his dead ghost. Now, if in order to kill Cayde, the barons had to kill his ghost first, with a very special and hard (near impossible) to get bullet, then why would this golden gun shot be enough to put Callum down for good? wouldn't his ghost just rez him...can a super kill a ghost?