I'll be honest, I can't beat this level. It is ridiculously difficult and brutal. I ran around it in a screaming panic looking for keys to acquire weapons and to open the doors to the end... and then was met with the largest horde of enemies I've ever seen in Quake. Try as I might, it was just too many monsters for one old shrimp to defeat.
And yet... this level is fucking cool. It's completely different from the standard of Quake mappery, filled with brutal death traps and unfair situations, completely expecting that you'll need to quicksave/load or just run past enemy encounters that you don't need to fight. It ends up feeling sort of like a dungeon crawler, a map where you explore the different parts of it feeling out where you're going to die, where you'll find silver keys, or where you're just running into a dead end so that next time you load up you can do it better.
I think there's a lot here that could be done better, or made more fair, or etc etc... but who cares. I'm glad this map exists and is doing something cool