[0.06] Playing in DOS -- "couldn't load endscreen"

[SenhorFlibble]

I've tried the current 0.06 release (both full and lite) in 486quake and QDOS in DOSBox. Both versions run fine in these ports, whereas I could not run them in the official Quake v1.08, which immediately exits with the following error:

Error: model progs/v_axe.mdl has a skin taller than 200.

QDOS seems to run completely as intended, it plays OGG music (although I cannot change the volume, apparently) and I've noticed no glitches whatsoever. 486quake is faster, but it plays no music, and in the full version I've seen occasional rendering glitches, like a door in e1m1 that becomes transparent at a certain distance.

Upon exit to DOS, both ports greet me with the message:

couldn't load endscreen.

Which I guess it just missing from the PAK files? (Open Quartz has one, albeit it's very simplistic.) I suppose you could create something like the ENDOOM screen from Freed∞M?

You probably are aware of the glitchy textures on the backpack that humanoid enemies drop, but I'm gonna mention it JIC.

Also, what's with the Ogre replacement model? I remember previous versions having this Deep One-like character, although IIRC it was not animated: https://i.imgur.com/exojmvI.png