Minecraft wiki entry for Mini_games, associated text: Battle Mode Pack Season Pass (grants access to Battle Map Packs 1-4)
Battle Map Pack 1
Battle Map Pack 2
Battle Map Pack 3
Battle Map Pack 4
Festive Battle Map
Halloween Battle Map
Chinese Mythology Mash Up Pack - Contains Valley map, skin pack, and Chinese Mythology world.
Fallout Battle Map Pack - Contains Capitol, Libertalia, and Atomics.