I'd love to play such a module! They could probably reuse much of their woff map. First flyable could be a d406 followed by a bf110 and then maybe a d520...
After that a leaning forward module with spit v and 109f4...
Then a non stop offensive thingy with spit IX and fw190...
Then fortress without roof pack with p47 and 109g6...
Then a fighters unleashed pack with p51 and 190a8...
Then a final days pack with tempest and me262...
Roadmap in my head is clear
If life was just as simple...