This probably won't see the light of day because I have apparently broken the Quake engine in some way. r_speeds are high (so don't use the software renderer!) and it's just -- slow.
I think there's either too much detail or I'm not allowed to use func_doors of this size. ANYWAY, download it if you want to take a look at what I've been hacking on for the last little bit:
Doom Arena
http://wantonhubris.com/qonquer/levels/DoomArena.zip
It's textured in Doom2 textures just to prove what a huge hypocrite I am.
Oh and if you don't have Qonquer, grab it here:
http://wantonhubris.com/qonquer/Qonquer.html
Again, this currently runs very slowly and I'm not sure that I'm going to finish it but I thought I'd give you guys a peek anyway.
I've always wanted to do a Qonquer level along these lines. Like a larger structure that slowly unfolds. I also thought the zombie minions were neat. Not all that effective as fighters but the fact that they keep getting up kicks ass.