Battlestations: Pacific/Battle of Cape Engaño

Completing this mission on any difficulty will unlock the ASW Fletcher Class Destroyer.

Destroy the japanese carriers
 * Primary Objective

Prevent the loss of anymore ships.
 * Secondary Objective

Destroy the supply ships.
 * Hidden Objective

Secondary objective
You get this objective towards the beginning of the mission and for a while it is pretty easy to carry out. The only ships at that time are the two battleships, which, if you use them wisely, won't come close to being wiped out. Once the carrier and her escort ships come into the equation, however, it becomes a little more difficult. Some of the escort ships are quite vulnerable to enemy fire and can be sunk quickly, so keep them away from the enemy ships. Use the two battleships (after you take out the transport convoy since it will be in the way) and squadrons of avengers to take out the remaining two carriers without losing another ship to complete the secondary objective.

Hidden objective
As you are attacking the second group of carriers, you will get word that intel has decoded the Japanese messages and finds out that a group of ships are trying to leave the battlefield and supply other Japanese forces. Your two battleships should be in a position to intercept them and are more than capable of taking them out. Once you have sunk the ships, you will have completed the hidden objective.