An easy fix and what I would have thought as a go to measure would have been to increase the spawn distance of American planes that spawn in the air. As at the time Japan didn’t have any airspwawned planes. Not the answer is still simple increase the distance from the obj that air spawned planes arrive in the pacific to allow for carrier launched viability and the possibility of counterplay with zeroes for example against rocket spam p-38s and co.
Not only that, the B5N2 squadron currently requires 22,000 research points to upgrade it to LEVEL 2. It’s very frustrating.