Base types of the Game: The home base can build light to medium vehicles and tanks The tank base can build medium to heavy vehicles and tanks The helicopter base can build heavy to ultra-heavy tanks and vehicles, as well as helicopters and airships The air base can build the same tanks and vehicles as the tank base, and aircrafts The harbor base can build the same tanks and vehicles as the tank base, as well as boats and ships that can only move in the river The train base can build the same tanks and vehicles as the tank base, and armored trains that can only move on the tracks