That's still Mary Sue, in the end, your character still surmounts the odds and wins the day. I'm talking about the small players, the people 'in the shit'. Create a story through their eyes, and you'll open up a new dimension not availible to Ace pilots.
Well, that's exactly what I'm writing about now. In a way, with a few differences. However, it's about infantry combat, not air to air combat. The only thing is, and I learned this the hard way...is that if you're going to write a story about someone small it has to be interesting. Because, let's face it, most people like reading about big, interesting figures. They're polarizing and traditional, and people latch on to it. That's why I have to tie in bigger stuff with the small stuff.