Man, I love studying machines that made today's technology, M18 Hellcats made the Abrams Suspension, The first FM Radios were made, the first Jet was made, an 88mm cannon, man, so many more things... I absolutely love it.
Oh, my, you might be right, though this DOES resemble an A6M Zero a lot, then again, after showing me that plane, I'm thinking FW190, I looked even closer, and I saw German Markings... maybe that was a red stripe next to the Cross I saw, and thought it was an Imperial Marking.
I would've though medic would fly around in an Fi-156 Storch instead of a Stuka. Considering he might not have the piloting experience for a combat plane as I see him more of an easy going pilot not a maniac that would pilot a Stuka, but eh just me.
Hat: Combat Medic's Crusher Cap, a promo hat from pre-order Company of Heroes 2 (game not yet released).
Coat: Quadwrangler misc for the collar collar, but with the tubing on the arm removed, and Medic's trench-/labcoat more brown than off-white (which is impossible in-game, as the coats cannot be painted).