AI Wingmen leave flight during aerobatic maneuvers

[Tiramisu]

Whenever an aerobatic maneuver for an AI group starts, the wingmen will leave the flight lead and return to base. Only the flight lead AI will continue its flight and do the aerobatic maneuvers.

[Tiramisu]

Or maybe not. They seemed to RTB at first, but it now I think the AI is just having problems to stay in close formation during aerobatics. A simple turn will make them fall out of the formation by several miles.