RAGE.WAD was created by Gary Bertagnolli (Rage) from scratch, using WADED.
It will replace your Episode 1 Map 1 level, simply by running the RAGE.BAT
file included.  Gary has given me his permission to include his WAD file.
It is, in fact, a pretty cool level, especially for his first attempt!  I
hope to see more levels from him and others.  -Matt