I was kind of thinking of it as a "squad" arena. We have a number of well organized...and prideful...squads. If we had a semi realistic scenario(s) that rotated over the tours. So that everyone knew that they'd see the same maps/goals one day a week for tour #X. I bet the squads would start to zero in on each mission. Example, France July 44. Limited bases, Vec parks rail,road, and ifrasturture. Planes limited to P38, P47-25, typhoon, spit, goon and B-26.
For axis 190-a5, 109 G2 and G6, Ju88. I'm assuming ponies and buffs busy with daylight bombing in ger and 190-a8 and G-10 deployed there. Allies would need to destroy rail,air,vehicle and other assets to promote advance while germans need to hit bridges, harbor facilities etc. pick periods that fit plane set aren't hopeless and provide some historical context for victory. Allowing for ditchs and bailing over friendly territory to not be a "kill" promotes increased teamwork etc....bringing your cripples home now has a real effect. I bet within a week all the squads would start arranging squad nights/times to cover new arena.