Interesting topic, but a lot more training would have to be done for an AHer to succeed in WWII. There is only a little teamwork here, and then only if you're lucky. The planes physics are wrong here. (Here's hint #1: The center of gravity is forward of the center of lift on a real airplane. If you really lost your elevators and horizontal stabilizers, you would pitch nose down, not nose up, and would oscillate badly all the way down.) The torque is wrong and is way under stated, and then disappears with a little speed. (The Spit 14, for example, couldn't go to full throttle until about 50 MPH, due to not enough rudder control.) There is no feeling for what the plane is doing. There's no sense that the ground is coming up at you really, really fast, and you're going to die if you don't pull out NOW. There's never an engine problem, or some other mechanical/electrical/gun malfunction. The 163's don't blow up all by themselves here. And, possible most importantly, the planes here don't compare the same as in real life, so if you think you're going to drop your flaps and turn fight with <insert favorite turn fighting plane here>, you're likely to find yourself wondering what happened, as you get out turned by something that's not supposed to turn that well.
Now having said all that, there are some people with excellent ACM skills here, but that's only a small part of the equation.