We have tried to get the Flawless Raider trophy for some time now, and everytime we get to Atheon he bugs.. This is an issue Bungie needs to address asap. After spending hours upon hours doing it over and over again my group is starting to loose that spirit we've gained through raiding together since release. Here is a video showing the bug: https://www.youtube.com/watch?v=6R338vMU4n8 It's in danish but i translated our frustrations to english.