Doom 2, Speed Of Doom - MAP31 (23 minutes extended)

Now, this is why I know this wad. I heard it from a video, when someone, without commentary, played this map. And because of that, I couldn't resist and played that WAD myself.
And this soundtrack is a masterpiece. It fits that secret level as well. When you gonna listen to this, you'll definitely be saying "Oh it's that level where we are in virtual space fighting hordes of demons".
Game: Doom II, Hell On Earth (PC, 1994)
Game by: iD Software
Map Pack By: Josh Sealy (Joshy) and Darkwave0000
Composer(s): Stuart Rynn
Sountrack: Stars
This soundtrack has been extended for 23 minutes. Enjoy!