Aces High Trophy in Air Conflicts: Pacific Carriers

You need to get at least one pilot (in any squadron) ranked up to over 255 experience. The quickest way to start this is after the first mission. The game will take you to your aircraft's screen. If you select the square button you will have an opportunity to rearrange each of your 3 squadron's pilot's by highest ranked experience. By doing this, you will have the first opportunity to gain more experience with your highest ranked pilot starting off first in the next mission. Rinse and repeat till you get that pilot ranked up just passed 255 xp and the trophy will pop. Note: If your highest ranked pilot dies, you will not rank up so restart the mission or checkpoint.