Played through it in GZDoom; it was fantastic and I encountered no issue whatsoever. I was not able to get all enemies and secrets, however, so I am doing a second run right now
Indeed, I have since found it. If I have one criticism, it is that it is over too soon and both the Rocket Launcher and Plasma Rifle replacements barely get any use - even on Survival! On my end, I plan on tweaking ammo and enemy values to see if I can create more opportunities for those two weapons.
Thanks for making the map! I hope to see a sequel/continuation.