Crota fight: knights waltz right in through "glass" sometimes killing teammates

Fix the glitch!!!!! I'm tired of people getting raid gear and weapons from cheating! Fix the bridge and Crota fight asap please! This game is great but getting sick of hearing about people cheating and getting more drops from the raid this way than actually beating Crota legit!

[b]Crota's END BUGS:[/b] I will write down all bugs i know and some video from youtube how it's looks like. [b]FIRST PART:: traverse the Abyss[/b] The bridge is forming even though no one is standing on it, you only need to step on it once, then wait in safe place for it to form. https://www.youtube.com/watch?v=7eUVopLPuEQ - start at 6:00 min [b]SECOND PART: Cross the bridge[/b] If the entire team wipe out at the beginning, and one warlock revives at 1-2 seconds, enemies stop spawning there, only swordbearer need to be keeped alive, at this point warlocks and ogres start coming out from the other side and can be easily killed by snipers from another side, after they are killed entire team can cross a bridge without even bothering with totem or panels. https://www.youtube.com/watch?v=fcAlHQrliRs - start at 0:00 min People can cross the bridge using the sword on the air https://www.youtube.com/watch?v=zIuZMArlyPY - start at 0:00 If you get high enough, ogres and warlocks will spawn on the other side and can be easily taken down from afar, without the need of opening a gate https://www.youtube.com/watch?v=hIYWFAtr4sE - start at 6:00 [b]THIRD PART: Deathsinger[/b] - no rewards for clearing this part [b] FOURTH PART: Defeat Crota[/b] People can regenerate health even without the chalice, when they left one enemy alive at the beginning corridor, then all of thme wipe, at 1-2 second warlock can revive, due to that entire team can regenerate normally. https://www.youtube.com/watch?v=mb83Hc841ro - start at 0:00 Crota will stop all his movement when going on his knee if one of the player will leave his fireteam https://www.youtube.com/watch?v=Aw57Xndgb0w - start at 1:00