I'm sure this has been done before, but I've noticed in other threads that some people have head tracking, some don't, some might think it's not worth the expense for the benefit it brings, and some simply haven't got around to it yet.
So I thought I'd post a short clip, from an avid IL2 fan rather than from the manufacturers, which I hope shows the improvements in immersion, tactical advantage, and situational awareness that it brings.
Of course, I had to do it in a BoB scenario...............
Hope you find it useful,
Dutch