Make the Chex font sheet into a zdoom font lump. That way, you can type names into MAPINFO lumps, and it will generate it's own slime font versions of the text.
EDIT3>> Make the teleport tube texture one-sided, and facing away from the middle (not into. >.< I made a typo before), and put a fullbright tag on it. It looks like the Legacy tube that way. I can make you a tube texture if you really need one. Also, implement the actual slope on E1M1 instead of those ministairs that lead to the landing pads from the lobby, please. All the weapon definitions are messed up, so I cannot switch weapons. I think it'd be nice if the Biped and Commonous made goo noises instead of zorcher sounds.