Sorry that my level still has the name of "Landing Zone," I can't figure out how to change level names for the vanilla engine.
Hmmmm.... you could do that or just launch it the not-so-old-fashioned way () with ZDL
chocolate-doom -iwad chex.wad -file Vanillavasionb11.wad
chex -file cqv.wad
I finally got it to work, and then I noticed it was VERY similar to another mod, and I felt the level was the same. The game is also a bit too hard for Chex Quest.