Set sail for the first time.

Survive your first enemy attack.

Sink 100 ships.

Spend 50 points on upgrades.

Have 50 crew units die.

Send out an Airstrike mission that doesn’t sink any enemy fleets and have no squadrons return.

Sink a ship after the war ends on September 2nd 1945.

Have your carrier sink 10 times.

Travel a total of 10,000 miles.

Sink the first enemy fleet.

Finish the first chapter of the campaign.

Complete all three tutorial missions.

Order a single officer with 6 medals.

Finish the second chapter of the campaign.

Unlock CV-9 Essex Class aircraft carrier.

Finish the third chapter of the campaign.

Finish the main historical campaign.

Complete the historical campaign together with all optional objectives and gain all four medals in every mission.