Crota's end fight is a piece of shit on Hard, there's so many bugs including: - Knights and acolytes that go through the glass before the Crota fight starts - Thralls that kill you through the glass on the balcony - Crota's shield instant regeneration altough getting hit by several rockets - Crota getting up instantly - Crota falling off the platform, follows a player until he kills him/her - Sword disappearing - Etc... The fight itself is not that hard, it's those bugs that make it hard. I manage to do it twice, but only after several hours of tries and misses, and I'm pretty sure 50% of the misses were because of those bugs. So Bungie, before you release a broken raid fight, YOU -blam!-ING FIX IT. You'll save a lot of players hours of frustration, because that's all I got from this raid so far.