Personally I am rather dubious as to how "fatique" is going to be modeled...
I can tell you from PERSONAL experience of flying REAL combat aircraft (albeit in jets... F-111, F-4G/E, and F-16 )AND in combat, and having the WONDERFUL opportunity to fly several WWII A/C... compliments of the CAF (Confederate Air Force/ Commemorative Air Force)... pilot fatique is VERY different for each person... a pilot in very good physical shape and using proper techniques can sustain high G maneuvers and higher G's longer, and better than somebody that is not as conditioned or experienced in proper techniques... I also can attest that even if you ARE bone tired, that when bogies are sighted... that fatique goes away VERY FAST and is indeed replaced with serious adrenaline!!! BUT... after the engagements are over and you make it back to base... you almost have to be lifted out of the cockpit you are so beat. Especially if it is not the only sortie you flew that day!!! It is not typically, until AFTER you are safe from the engagments that the fatigue sets in... and in MANY cases the shakes!!!
So how is this going to be modeled properly... ESPECIALLY since they flew several sorties a day??? I am curious but a bit apprehensive as to see how this will be done!!