The Battle Field is an advanced level track that appears in BTD5. There are two entrances and exits on this track. The Bloons enter from the left side of the track, and then the paths crisscross. The bloons at the bottom left corner go to the top right corner, while the bloons at the top left corner go to the bottom right corner. There is no water on this track. You cannot place towers on the green bush or the dead bodies.
Note: Towers can be placed on any part of the track without an arrow on it.