The Horde does get a bit old.... instead of trying for an air to air simulation a bunch of arcade gamers converge on a field in droves like piranha and hack and slay anything that moves. It does ruin the sim experience to the extreme.
Me thinks having a faster and more dynamic ENY system in play would help solve the issue. The ENY should start with 3, with aircraft such as the 262, 163, Tempest, Spit16, George, La7, F4U-4/1C, and P51D that low. Then start adding in the F4U-1A/1D, Typhoon, Spit8/14, etc at 5, etc. Let ENY be more of a factor. If the attackers are limited to P40's, F4F's, 109E-4's, Spit1's for fighters and Ju88's, Boston's, and B25C's, one might be surprised how quickly the arcade gamers back off and go back to playing WoW.
Also, heavy bombers should not be able to take off from front line fields. That would save some of the massed Lanc-stuka raids that level towns and fields in seconds and allow the piranha to have an easy go.