Battleship Minigame - No Mods, Spawnable, Destructible Ships!

A recreation of the boardgame Battleship in Vanilla Minecraft (1.7+).

Features:
-Full preview board for deployment
-Random selection to determine who attacks first
-Spawnable vertical and horizontal ships-Fully destructible ships
-Win detection
-Observer team allowing creative gamemode
-And a whole ton of command blocks

Estimated game time: 30-45 minutes