Derp. This lunacy prompted me to play around in Doom 3:
Repercussions Resurrection of Evil again. The good news? I still have that mod that gives the guns flashlights. The bad news? It was for regular Doom 3 and thus the gravity gun doesn't give me light.
[shamelessplug]
Also, that map I mentioned working on for Doom 2 is uploaded to the Doomworld FTP and approved.
ftp://archives.gamers.org/pub/idgames/levels/doom2/Ports/v-z/vilekeep.zip[/shamelessplug]