okay after a run about last night:
- optimisation is terrible. Was getting 60-90 frames in some locations. Doesn't look like you've func_detailed all stairs etc. Vis seems to start a good 32-64 units under the map too which is a little concerning. Are your areas properly sealed in regards to area_portals and hints?
- Theme wise- not sure where the map is meant to be set...not sure if you do either. I suggest you look at areas in the north of africa - Algeria/Mauritania/libya etc and use references of these places to build a stronger identity for your map. the map is such clashes on texture sets - Middle east/Mirage-style africa/European internals/industral/wartorn areas which actually hampers believability and path finding. I would suggest simplifying and making the map make sense thematically. There are some areas where it feels you're in a totally different map.