I first played through at work ;-)
We had two Macs: an LCIII with 16MB of RAM, and a PowerMac 6100/60. The LCIII got like 3FPS and you had to play with the ceiling and floor textures turned off in 256 color lo-res mode, while the 6100 played smooth as butter with all of the eye candy turned on.
We played a lot of multiplayer, and getting stuck on the LCIII usually meant you were in for a very long evening. In lo-res 256 colors, your opponent was indistinguishable from the scenery at more than about 20 feet (one blob of pixels looked pretty much like every other), and the frame rate... jeez, you might as well have been playing by email. Sometimes i swear you'd get shot, respawn, then get killed again before you heard the first shot.
So we made the LCIII the handicapper: whoever won more than a couple of games in a row would have to switch over and use it. I have to sy, I spent a lot of time looking at that 14" monitor in 256-color lo-res mode ;-)
Anybody remember an old netmap called "Armpit of Despair?" If so, let me know where I can score a copy. We wore that map out back in the day and I've never seen it since.