So my friend and I went into the special [i]Light Level 300[/i] version of the [b]Sunless Cell[/b] Strike in order to get the Exotic Sword. After we were put in the game with a random we went through the strike to the end. (The three of us all had Sol Edge so it was much easier). We killed the ARC and VOID warden Knights. We weakened the Solar Knight to near death. We defeated Alak-Hul, the DarkBlade and the Knight [b][i]almost IMMEDIATELY after.[/i][/b] My friend and I did not complete the quest, but the random with us started dancing as if he completed it. So the question is: WHAT HAPPENED? I don't understand why my friend and I did not complete the quest and the random did. I checked and I have the quest that says to kill the warden and and Alak-Hul within 30 seconds, so it's not an issue with not having the quest. I would love to know what happened and if its possible, I hope Bungie can check my recent games and see that I did not receive the completed quest.