As I reviewed a last-year's DGS escort mission a thought came to me that if contrails are impractical in arenas, perhaps they could be made an optional feature of the AH Film Viewer, like the "Trail" option that is currently available. Contrails would add yet another level of realism, if only in AH films. It would be outstanding to see non-persistent and persistent trails added to massive formations, like that of the DGS missions.
Yep. Just a wish.
All the best.