Historically, the P47 off the cv deck was, as ack-ack said, a way to ferry a bunch of P47s to an island out in the pacific and have them ready to fly in combat right away. Other planes were shipped overseas too but then had to undergo a fairly labor-intensive process of assembly and cleaning (to remove the anti-corrosives that kept the salt spray from damaging parts) before they could be used. Shuttling P47s on the deck of a carrier meant they could be landed on the newly captured island (I think it was Saipan but may be mistaken), armed, fueled and ready to fight in a much shorter time. Having CV based P47s would be less historically accurate than CV based B25s, which I think is a stretch too since it was only done once. The kamikaze rocket is an interesting idea...maybe there should be an option to use any Japanese plane as a kamikaze plane, with more damage being done than just the normal bomb damage. Maybe select the option to make it a kamikaze mission in the hangar, double the normal amount of damage, and make it so normal landing isn't allowed (you just auger as soon as you touch the ground or water even if slow and gear down).
For those of us that prefer historically significant plane and vehicle types, the numbers would point to the kamikaze as a realistic option if it's technically possible to add this type of mission: around 3,900 kamikaze pilots lost by the Japanese forces, and depending on who's counting anywhere from 50 to 70 US ships sunk or damaged beyond repair. I think that's at least as important to the way WW2 played out as the ME-163 and 262s were.
