This is my first Duke map.
I did this after about 20 min with BUILD.
On a scale of 1-5 it rates about a -3.
It is however, intense. 
The RPG is not for killing monsters. It's for
killing yourself so you can start again
(assuming you may want to start again).
Don't bother looking for secret doors because
there aren't any. It's just the one room.