Yikes, I'm really sorry it took so long to reply to this after asking you to do stuff...life kind of got in the way. blech
Anyway, these are the IWADs you're using, based on those checksums:
| Your filename | iwad-patches filename | Description |
|---|---|---|
| doom2.wad | doom2_1.9.wad | Doom 2 1.9 |
| doom.wad | doom_ud.wad | Ultimate Doom (1995) |
| nerve.wad | nerve_bfg.wad | BFG Edition |
| plutonia.wad | plutonia_1.9.wad | Original retail box |
| sigil.wad | n/a (not an IWAD) | Sigil 1.21 |
| tnt.wad | tnt_1.9.wad | Original retail box |
That's not the whole story, though. For example, I have SEWERS.WAD and BETRAY.WAD which WadSmoosh does detect and use. There's also some stuff about widescreen assets; I'm not sure if I personally care about that stuff since I'm just here for what happens after the menu, but if we're going to be pedantic about it (and I certainly have a pedantic streak :P) then I suppose it's worth bringing up.
There's a comment further down that seems to be a full list of everything, that I somehow missed before; would you mind taking a quick look and confirming that this is the list of all the WAD files you need to "max out" the final output file?
The Master Levels WADs only have one version so I won't clutter up this table with them, but thanks for confirming the checksums. :)