stuart666 created an amazing .miz file that includes all the Normandy flak fields of 1944. I added triggers for the individual flak groups to turn their AI on when the blue coalition enters the zone(s). ALL flak units AI starts off as OFF to save framerate. Keep in mind that if there are numerous Allied aircraft in numerous areas across Normandy this can still create quite a framerate hit. If you are flying one group through Normandy, the framerate should not be an issue any longer.
Again, thank you stuart666 for an amazing .miz file!!