I am currently designing a map of Fallujah. I am using satellite pics, military maps, and simple color 1km grid breakdown maps. This will prob take me a month at least, but it will be good. There will be a plethora of buildings, so your frame rates may take a hit. I will have all the surrounding highways, railroad tracks etc...I will try to make the placement of buildings as accurate as possible, but the size, shape of the city and the position of roads will be right on. That would be cool if the deisigners could make more buildings I.E. mosques, industrial buildings etc..