Icon range for enemy cons is already shorter than in the MA, so this answers part of your request. The problem I see in turning them off entirely is the difference between "computer perception" and "real perception". IRL you could identify a member of your wing a good distance away due to the paint schemes on the aircraft, and an enemy plane much, much farther. In AH, with the same is not the case. I can't see my squad's marks on a plane unless I am less than 200 feet away. d1000 away all the planes look the same on my pathetic screen. So IMO, turning off the icons would hurt gameplay and actually make it less realistic.