I flew the P-38 exclusively for a couple of tours a while back. I did decently in it, but it took a while to do so -- I had to get used to the compression. It's a decent plane in AH -- not really horrible at any particular thing, but not best at any particular thing (in my opinion, anyway -- and that's in AH, not in real life that I'm talking about). I don't consider the cannon ammo load all that important -- the 4 50's all concentrated in the nose seem plenty lethal, and you have lots and lots of that ammo.