The scenario for FSO Götterdämmerung - The Fall of Berlin is the very late war in Europe. The Axis had jets, etc. The Allies had overwhelming numbers.
In Frame 2, the Axis had more pilots. How to represent the Allied numbers?
How about letting Allies have multiple lives?
This is not for all scenarios. Just for times that, historically, one side had a severe disadvantage in numbers.
This setup has all of the high end German planes. At one to one odds, with the large pool of those who favor German planes, the Allies need a balancing imbalance.
The scoring system might still work as there would be more opportunities for kills by the Axis, along with more tension in the outcome.