Forget all this strategy stuff and do this to kill him guaranteed. 1. Head out to bottom room under the crystal. 2. Take down his shield however you want, ghjallorn should do the trick if you want quick results. 3. The fireteam leader turns his xbox off or go to the dashboard when crota is just bending his knee to go down to take a breather. This causes a delay in the game and some sort of lag because of the timed out player who left. 4. Kill the swordbearer and -blam!-ing annilhate him because crota shield is permanently down now till everyone dies, although watch out for knights, get someone to get their aggro or kill him whatever really by sniping them. Oh and the guy who turned his xbox off can join back if everyone waits before they kill off crota, lastly if you don't kill him in two sword uses watch out for ogres. Though with this trick you should have him dead with the maximum of two sword uses. Just so you know I've done this with me and my friend only, if you need me to I'll put it down here on how to. Give credit to the guy who made the video as it is not mine. He might have it more detailed then the way I've written it. [spoiler] Btw this is a exploit and was not found by me. The more you use it, the more you kill off this game for yourself. Its your choice. If I get hate for this I don't actually care you know I just felt like sharing. I typed this on my mobile, I'll make this more detailed later if no one understands it.