Historically accurate would be either Lancasters against nothing or Lancs,Mossies and Mustangs against the G-6, 110, 410 and A-8.
I believe that the axis suffered from low numbers and a bit lack of discipline. At least in frame 2 they lost almost an entire squad during the first boming run due to people reupped and got killed a 2nd time so when the 2nd bomb run launched there wherent enough axis pilots left to put up a fight. But this was by far the best setup for the axis, normally they have to do this with G-6 and A-8 only so having K-4:s and Ta:s was a huge improvement.
As for the scoring its always a bit complicated how to count the damage done by bombers and there are unfortunately no general rule to follow. An idea might be to determine the winner by looking at the scenario objectives. For ex if the allies sink Tirpitz they win, if they fail the axis wins.
But overall this was a 3, not so accurate historically as mentioned but it gave people a chance to fly all the LW monsters against each other and thats a rare opportunity in scenarios.