Complete the indicated task to unlock the corresponding unit.

American missions
Allen M. Sumner Class Destroyer: Complete the "Battle of Santa Cruz" mission.
Anti-Submarine Warfare Fletcher Class Destroyer: Complete the "Battle of Cape England" mission.
Atlanta Class Anti-Aircraft Cruiser: Complete the "Battle of Cape Esperance" mission.
B-29 SuperFortress Heavy Bomber: Complete the "Air Raid Against Indochina" mission.
Gato Class Attack Submarine: Complete the "Defense of Henderson Airfield" mission.
Iowa Class Battleship: Earn a gold medal on "First Battle of Guadalcanal" mission.
TBM-3 General Motors Avenger: Earn a gold medal on the "Battle Of Okinawa" mission.

Japanese missions
Akizuki Class anti-air destroyer: Earn a silver medal on the "Saving The Shoho" mission.
H8K Emily flying boat.: Earn a silver medal on the "Destruction Of Z Force" mission.
I-400 submarine: Earn a silver medal on the "Hunt For The USS Hornet" mission.
J7W Shinden fighter plane: Earn a silver medal on the "Invading Of Port Moresby" mission.
Betty with Ohka suicide rocket plane.: Earn a gold medal on the "Invasion Of Hawaii" mission.
Shimikazi advanced torpedo destroyer: Earn a silver medal on the "Solomons Skirmish" mission.
Tone Class heavy cruiser: Earn a silver medal on the "Battle Of Java Sea" mission.
Type B submarine with Kaiten manned torpedoes: Earn a silver medal on the "Attack on Sydney's Harbour" mission.
Yamato Class battleship: Earn a gold medal on the "Invasion Of Midway" mission.