Is there a method of designing a level in your native 3D App (Maya, Max, etc.) and then just export it to radiant to drop in the entities?
I use to make multiplayer maps for CS and DoD using WorldCraft/Radiant, found it very limiting.
A friend of mine was studying at Magee, 2003-2004, his thesis on A.I. within Games. Pushed Wolfenstein to its limits. I’ll tell him to drop Torc an email.