So unfortunate..
So, me and 2 friends were working together to unlock Dragon Endurance, and one was away for the last bit, and the other died trying to get to hell with me, so I had to gun my way to hell alone, and once everyone came back, they all respawned on me to fight the Undead Dragon. So, we manage to get him to come out, but I got jumped by mobs acting as bait for the dragon, one friend died, and the other who had the Anti-Dragon missile besides me died right when my countdown hit "0" and it let me respawn. Worst. Luck. Ever.