It's not common to see an FPS that has a level structure that gives you the option of avoiding almost all of a level if you want to and I'd forgotten that this game does that. It's certainly a nice touch and makes this one very memorable but the question is, how hard is the level that you can skip if you like. There's only one way to find out, isn't there. At 19:49 I had to cut a small amount of video out due to audio glitches that made that segment unrecoverable. No commentary was lost during that cut..