Minor changes & improvements

Removed some concrete barrier (they can be hard to see)
Increased flag accessibility to vehicles to reduce occurences of bots exiting vehicles

Fixed map actual name

Replaced grey block buildigns with something actually looking like buildings in both large cities
Added trees and improved cities visual and navigation
Improved / smoothed many roads
Tried to make bots use vehicles more

Some improvement on airfields zones
Vehicle pathing optimization (hopefully) - bot drivers should like bridges more now
Minor graphicals fix
Some flag names fixes
Slightly less vehicles on some spots
Fixed fighter spawn in Ufocity center