Ok, so I cordon’d out some rooms that were recently added and still the same fucking problem :/.
Well start cordoning small spaces and gradually increase the size or move it around. Start off with one room, or so, and if it loads fine, the problem isn’t there.
You could also upload the vmf and someone could take a look, but then that’d be sharing your mod’s source files, which very few people are okay with doing.
Yeah…I dont want to do that 
Do a binary search. Cordon half the map, and if the map loads fine then the problem isn’t there. Then for the half of the map that crashes, divide that into two parts and cordon one of those halves. Repeat. If you do this enough, you’ll eventually get down to a pretty precise idea of where the problem is fairly soon.