With the understanding that this is likely to be a "wishlist" thread, that AI programming is hard and tricky work, and that the improvements to AI in the 4.12 patch are generally excellent, I'd like to propose some potential improvements for AI behavior in future patches.
Proposed changes might be things that are "baked in" to standard AI behavior, but might also be things that can be set up in the FMB, or even specified as player commands.
Currently, IL2 AI doesn't always follow historical tactics and formations. While much of this information is probably old news for TD, perhaps these links might offer new information, or give mission builders a sense of how WW2 era Air Forces actually maneuvered their planes.
Interesting video on 1944-45 USAAF tactics here which covers a lot of details: