If the railroad need maintain cost, i think player may not build railway in every square in game. (if the cost is expensive)
I think need some improvement other than fortress, such as bridge. As we know bridge is important in war. If there is a bridge on map, we can bomb it.
I think need some improvement other than fortress, such as bridge. As we know bridge is important in war. If there is a bridge on map, we can bomb it.