Here's a first run demo:

http://starship.python.net/crew/mwh/heresp4_mwh.dz

11:54, skill 0, 33/33 kills, 2/6 secrets (saw another one but it looked like getting to it risked pointy death, so I was cowardly).

Was fun, though I didn't really have that much of an idea what I was supposed to be doing most of the time... 

Just a technical suggestion; avoid using curly braces {} or parenthesises () in texture names, it may cause problems as these characters delimit entities, brushes and coordinates in the Q1 map file format.