Battlestations: Pacific/Invasion of Tarawa

Hidden Objective(s): Destroy all AA guns; the guns are all located on the main island so you don't have to go looking for hidden AA batteries. When you get the objective to strafe the land batteries just take a little bit of extra time to take out all the AA defenses as well. Some of them are on the opposite sides of the island and some are located right next to or within the vicinity of the objectives so you might have to zoom in the map like I did to pick them out. Destroy ALL of them and you will have comepleted the hidden objective.

Secondary Objective(s): Keep all transport afloat; The main threat to the transport ships are the squadrons of torpedo and dive bombers. Do not worry about the zeros as they do not have any weapons capable of sinking a transport. Focus on the dive and torpedo bombers and keep all of the transport still floating by the time you have gotten the troops to secure the island and you will have comepleted the secondary objective.