It's not too difficult to imagine for a seasoned modder like DZ.
Cannis, you just made my day with happy memories of Quake. I used to play it with Meatloaf music replacing the game CD music (Bat of of Hell 2 to be specific). Then came Quake 2 which I adored, on PC AND Playstation, then Quake 3 - never liked that one. Quake 4 heralds the return of the Strogg. I'll be keeping a close watch on that one.
Heck, I even still play the original Doom and Doom 2 regularly, with mods/wads. Classic music fits very well with Doom BTW...
Funny though. I remember ages ago, on my 250MHz machine, I tried opening some RA1 files in Wordpad. It took longer than I expected and I ended up restarting the PC after losing the will to wait any longer, attempting to close wordpad, and the thing freezing up on me
