The Submarine is a premium unit that is released in the 4.5 Patch and can be built at the Dry Dock. Its is one of the few units which are more effective against higher-powered warships than low-level ships, since battleships are vulnerable to -type damage. Battleship guns are also less effective against submarines due to the Submarines' explosive damage resistances, although the sheer damage dealt means that battleship guns are still viable anti-submarine weapons. However, Gunboats…
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