Looks ok, but I think you should spend some more time playing DoD before making a map for it. Play a open map, and see how much fun it is to get killed by "invisible" snipers, rifles (garand/kar) and MGs. Also, as mazy said, the buildings look pretty poor. Maybe section off the forest and the city, to keep the wpoly under control while being able to give the buildings more detail?
Also, large open areas like that will cause massive lag. Not really because of wpoly, but because all the players will be visible the entire time causing gi-normous epoly.