I'm pretty sure this guy is trolling you, and I'll explain why. When you go all the way back into that far back room, Phogoth [b]does[/b] despawn, but you also instantly fail the mission. In Nightfall, this means you go to orbit. While I don't deny that it is plausible that if you do it just right, then the enemies will despawn and you might not go to orbit, I don't think it is worth the risk of starting the whole strike over. Also, the fact that he looks at the ground like that is highly suspicious. While his editing is admittedly pretty good, I'm pretty confident that he didn't actually go back into the far room at first, they beat Phogoth, then he looked at the ground again and walked back there before the rewards popped up. Then he just edited out the bits in between where they actually fought Phogoth, all in an attempt to troll you into failing your Nightfall and needing to start over. [b]Edit;[/b] Upon closer inspection, his ammo count remains the same throughout the video. While he could have taken this into account and made sure he had the same amount of ammo at the end of the strike, or just not helped killed Phogoth, it still significantly reduces the odds that he spliced this video together. But! Still read the next paragraph! [b]/Edit[/b] I'll say this part again for good measure; even if he is not deliberately trolling you, it is not worth the risk of starting the Nightfall over just to try to skip Phogoth. Good luck, Guardians.