There's a very good reason why most combat flight simulator programs stick to just a handful of aircraft: Because every single one works exceptionally different from the last. ATF tries to be an all-encompassing program that offers a massive number of aircraft to fly but ultimately feels extremely inferior, even compared to older programs. Doesn't help either that all of the technical data in the program is a couple decades out of date. All that said though, it was fun to tinker with this thing as a kid, but it absolutely did not age well at all.