Download patch 1.1 and get this add-on pack with few more ships and planes.
http://www.battlestations.net/news/?id=145 NEW UNITS:
Iowa-class (Battleship)
The USS Iowa was the lead battleship of its class. Built in the 1940s, the Iowa-class battleships first served in World War II and subsequently in every major U.S. war of the latter half of the 20th century.
Shimakaze-class (Destroyer)
With a powerful engine and 15 torpedo tubes, The IJN Shimakaze ('Island Wind') is considered to be the fastest and most powerful Destroyer of World War II. Very expensive she was the only one built.
Lockheed P-38 Lightning (Fighter)
The P-38 Lightening is a fast, powerful and distinctive twin-engine interceptor and one of the most important American fighters of the Second World War. Its long range and twin engines made it well suited for duty in the Pacific.
Nakajima J1N1 Gekko (Fighter)
The Nakijima Gekko was the first Japanese aircraft designed and built specifically to intercept and destroy other aircraft at night. It was deadly against Bombers and as a powerful kamikaze plane against ships.
Type A Minisub (Submarine)
The Type A mini-sub was two-man submarine or 'midget sub' and was carried 'piggy back' by a mother ship, usually another submarine, to its area of operation. Type A submarines were used during the attack on Pearl Harbor, Hawaii and throughout the war.
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kamekazing airplanes in midway are a waste to do since they really don't do anything and people just do it so they don't have to fly back to refuel and such. You can fix your ship if its taking on water and it kinda depends on what ship you have to what the other side has. Some ships are better then others even if they are listed in same ship class.