I found that when you play the game half of the things are still errors (After downloading the content pack), there is a simple fix to this. Type "Mat_specular 0" in the console and after you wait about 30 seconds - 1 minute (Depending on your computer strength) it will fix it.

I play on 'mat_specular 1' so it works. I belive 'mat_reloadallmaterials' also will do the job because changing specular reloads materials too. Try to set specular to 1 again and tell me do you see errors.

I tried the map again, this time with less mods installed, and this time nothing was an error. It must of been an existing mod that was conflicting the map's materials.

In the map 3-1 FPS

So when I try to add the doors from entrance zone to the Breach door config (the thing that puts keycard levels on all the doors.) It breaks and says that there is no entity at the location. I have tried using both the entity location using a debug tool and extracted the map into hammer and get the coords. No matter what I do the server breaks.

I have idea why, but it may require editing map - As i saw, original creator messed up buttons origins and some buttons have their origins outside the world (I don't remember if I fixed it, but if no, it might be the problem)

Btw as i remember, I used entrace zone buttons and it worked fine for me.