Pirates

Pirate Bay

Can support up to 5 ships (Corvette or Frigate)

Pirate Haven

Can support up to 10 ships (Corvette, Frigate, or Galleon)

Pirate Fortress

Can support up to 20 ships (Any)

Pirate Ships:

Corvette

Frigate

Galleon

Battleship

Aircraft Carrier

Supports 1-3 Airships