I strongly oppose this. One of the reasons we're developing for Hexen and not for Hexen II or Heretic II is because creating a map with the DOOM engine is a lot easier than doing it with a genuine 3D editor. It might be just me, but I've done some cool (hey other ppl said that!) maps for Heretic / Hexen and my only attempt to make a Hexen II map some years ago resulted in frustration and giving up. Also, I always hated that junk engine Carmack calls "leading edge" (Quake I-III, most probably the new DOOM engine as well)... while in Jedi Knight or Unreal I could enjoy really large-scale environments, in the Quakes you're always confined to a corridor or a small room and all you see is walls, walls and walls. Like walking in a tomb. I want real outdoor environments and that's where the ages-old DOOM engine has an edge over anything Carmack coded since. I don't want to lose this capability.