So im pretty sure everyones been searching for the last chest. Im not looking for hate and im not looking for speculations. I do not have a video but i can tell you why. The last chest is hard to get and i think its only possible for 3 people to get it at a time. When you enter atheons door nobody can die. Get through the gatekeeper. After the gatekeeper whats next. You get the two relics out of the portals. When you come out of the portals with both relics the 2 vex gates inside of atheons room opens. And if nobody has died the front door will be open still too. And if you havent peiced together what im getting at yet its that when those 2 portals open so does the dead vex gate outside. I was a relic holder when this happened. Me and the other relic holder stayed in atheons room to prevent sacrifices and the rest of the team headed outside towards the gate. I have not attempted this on normal mode. And i should also mention that we got the templar chest too. (Dont know if that affects it). Like i said im not looking for hate so beleive me or not your choice but i recomend giving that a try=)