This map really looks awesome ingame! (I got Q3)
In terms of shaders and lightning...
The lighting itself would be possible! If you really know how to...
these shaders... hmmm maybe possible with texture scripts and some nice brushwork...
Looks ingame a lot better!
EDIT: I'm trying to remake a similar map... Looks like fun!
Maybe Several Maps with modes in one map? I know how to!