Doom was not a favourite game of mine - although I do acknowledge how groundbreaking it was, when it appeared. I did play a lot of Castle Wolfenstein - although that may not have been it's name? ie. the game prior to Doom, against Nazis...
I do remember Andrew Bradfield being right into it, and later first person shooters. Although violence in previous computer games, etc did not bother me, much at all - I did like playing the Tekken series, and the Streetfighter II series, etc etc - and all the spacey shooters -- somehow I was not into going around and shooting at things, etc etc with various guns, etc etc. I'd guess that kind of violence is a little too personal, and getting to be more and more realistic - and somehow my consciousness, etc etc does not want to be involved with that. That seems to be how I rationalise my growing decline in playing computer arcade games - plus I have played literally many hundreds of videogames on the Atari 800, C64, SNES, Megadrive, Lynx, Nintendo 64, Atari Jaguar, Playstation, Saturn, PC, NeoGeo and Dreamcast --- 6 of these consoles I had a loan of... So you do get to be burned out after playing so many.
I know that Andrew tired/had gone off the arcade games - because they get rather too samey in gameplay - and he switched over to playing more in the way of RPGs, simulations and 3-D games, etc. He was into Quake II, and designed his own environment in that.. He was into the car racing simulations - and he did that in real life - purchased a faster and faster car and became more competent in his driving... etc.