Hi all. This is my first post, so be gentle! Haha
What about the F4U Corsair? By June 1942 there were 2 squadrons in the US Navy equipped with the F4U. These same planes could have been made available to the Marines on Midway. Although the Corsair at that stage been considered by the Navy to be too dangerous for carrier use, but they would have been perfect for the Marines operating from the landing strip on Midway.
A few squadrons of Corsairs might have given the Japanese something to think about, particularly if they were guided by the use of radar to intercept the Japanese planes attacking.
I suppose breaking up your military into command or services has advantages but it also has disadvantages this being one of them. The US Navy designed the perfect Marine Core aircraft.