Outside is pretty bland, I would suggest adding more objects to spice it up a bit.
I suggest you rethink the weapon pack you're using. Untiered Arms may look pretty in animations, but draw times are sluggish and guns like the Revolver and Sniper aren't really useful for multiple accounts. The best recommendation would be Hells&Khain's Weapons for a map like this.
With the size of the map and the current weapon pack, doors minds of well be dead-ends when trying to escape gunfire and clickable bricks inside buildings are more of a distraction than interesting. Expanding the map or thinking of alternative ways to open doors should put a proper finish in these details.
Spawns can get packed up if a large amount of people are playing. Try spreading them out or adding additional protection.
Overall this server is actually pretty fun for competitive play, but if you can iron out the problems, this could be even more enjoyable.
