I have ported the Wolfenstein missions to DOOM II, creating what is essentially an improved and updated Wolfenstein. Each scenario is painstakingly recreated as a DOOM II WAD, complete with all the Wolfenstein textures, objects, sounds, and enemies. The result is a total conversion.
You will need EDGE 1.35 or later (edge.sourceforge.net) and a Doom 2 IWAD. Everything else is included in the package. The mod received a complete overhaul from the ground up, now being much more accurate and faithful to the Wolfenstein 3D and Spear of Destiny Games. Among new eye and ear candy are extended and improved enemy frames and Spear of Destiny exclusive music which was previously missing. Most other changes are under-the-hood type stuff, improved mechanics and behavior. For those who have no idea what this is: it is an extensive remake/update of Laz Rojas' WolfenDoom scenarios: Original Missions, Nocturnal Missions and Spear of Destiny featuring hi-res wall and sprites, crisper sound effects and re-recorded Wolfenstein 3D music (with real instruments) among other things, by CeeJay.