A little over a year ago, I posted the video of someone finally beating the hardest Doom map ever in a single shot (#456860). That was on the easiest setting, though.

A year later, the same streamer (Coincident) pulled it off on UV-Max (which means using Ultra-Violence -- the hardest normal setting -- and scoring every single kill).

Again, a huge video (can't imagine anyone really watching it in one burst), but also an amazing example of Doom talent.