Missed musical rip-off/homage: 'Rise' by Pantera (E1M4).

Bonus fun fact: the main level designer for Doom 1 and Doom 2 was Sandy Petersen, the author of the classic Chaosium RPG "Call Of Chulhu" (which is a pretty big deal if you're into that sort of thing, as I was back then.)

There are a lot of missed stuff. The video should have been longer or split to have more parts.

I just never got into Doom or Quake or any of the really early. The whole hell theme just never resonated with me.

I think System Shock was my first FPS, then later Half Life

Yeah. Sort of how All Your History series on Machinima did it... though they seem to have lost it during season 5 when it seemed more like, here's the people who paid us to do a All Your History than anything truly insightful. I keep hoping somebody will take up the banner of All Your History and do it right. Did You Know Gaming and The Game Theorists come close, but lack the feel the original series did.

Ditto.

I couldn't get into the first System Shock game, but its sequel. OMG! "Look at you hacker..."