Its basicly LOMAC or Wings over Europe, both boxed sims not arena play.
There really hasn't been a good modern era sim that you could arena play.
Balance is simply impossible to achieve with jets and fire and forget missles.
Myself I started flying A10 Cuba over Kali, and the vast majority of the good match's were guns only, no missles allowed. You fly hard to get a guns solution and a good one in order to get a clean kill.
WWII era planes are simply much much easier to work with.
However I agree with Harpoon that there used to be a lot of good military sims out there. There simply isn't much to choose from anymore.