Comments - ChristianIce

Not sure which synth, but you are spot on on the fact that the opening filter is very "modular".
By the time they were done, it was either a Moog or some Euro-rack, go figure which one :)
On the second one, I'd say yes to the chorus, nay to the vocoder.

Yes and No.
Sounds are from libraries like Soundideas, and it can happen that a game uses those as a source, so you will end up with the same sound.
I've tried to locate the original source files used by Id in 1996, but I couldn't locate them all.

Found out just later that Quakespasm can't support stereo sounds.
Converting the stereo sounds in mono make them good for Quakespasm too, but you have to force the 44100 Hz with a batch at the beginning.

Sorry, I was not logged in...
I would like to discuss with you a feature that I had in mind, is there a way to contact you on Quakeone or wherever?

Hi man!
I think I just gave you some more material for your next release :)
Check my 'Quake Eargasm', hope you'll like it. Cheerz!