Me and my fireteam (2 hunters 4 Titans) just launched Crota off. We have no idea how. We were on hard mode Crota, Titans dropped orbs all where Crota stands. We started, 1 hunter took the sword. When we downed him, he sliced our sword bearer once at the same time our sword bearer super charged him. At this time Crota and our sword bearer flew up into the sky. The hunter fell back onto the platform. Crota fell off the edge and kept falling for a good 10-15 seconds and then rewards popped up. We have NO idea how this happened nor was it intentional. We had one person get the Crux of Crota from this btw