What map will let me win a game of Battle City as soon as possible?
Surround your base with concrete, then surround the enemy spawn points (top left corner, top middle, and top right corner) with the blue water tile. The enemies won't be able to move around, but you still get to shoot them. Of course they can shoot you too, so just be careful. This will win you the map very quick, but it will not win you the game since,if I remember correctly, it takes you back to level 1 after you win your custom map.