I watched the video... and I'm not convinced. For one thing, this Ultra Captain boss? He's literally just a big captain. So... obviously he's a placeholder. Every strike boss has had its own unique appearance (For example, compare the Archon Priest to, say, Draksis, or the Archon Rising dude in the Cosmodrome that has a chance of spawning for target kill missions, or Phogoth to normal Ogres). For another thing, there was no special animations. Literally the dregs just popped into being behind the player when he walked out of the room to trigger their spawning mechanic. The boss, too, just blinked into existence - not in a specific spot, either, but in some random corner. It could be explained that the Ultra Captain was just a miniboss, like the Devil Walker in the Devil's Lair strike. But the complete lack of special effects on even basic levels doesn't sound to me like a finished encounter, or finished part of the game period. And let's not forget how the dude got in there to begin with. You think that maybe one of the reasons why Bungie didn't put it out was because people could do THAT and break in? Face the facts; this is UNFINISHED. Yes there are pieces in the game, but that's all they are -- PIECES. And pieces do not make a whole.