In my opinion this pilots “ability” about attack trucks and not AT-guns is a “double edge sword” (I don’t know if the expression exist in English): it can be a nuisance if happens to your planes, but can be great if the AI planes are the ones which attack on you!
Example. I usually make the following thing. I Place an Self Propelled Artillery Unit and a Truck in the same hexagon. The SPA shots its rounds. The “smoke” appears on the hexagon, and the AI see it. He says: “There are the enemy artillery, I’ll order an air raid on this hexagon!”. Then I move my SPA to other hexagon, but leaving the truck in the original one. Then an airplane come into attack... and shots the truck! My SPA is still alive and ready for another artillery round

. At the end of the battle I recommend de valiant truck crew for a posthumous medal.
I don’t use to much air power, so I don’t have to much experience whit it. But I have the following feeling: Although there’re ground support specialist planes and other bombers in general, it seems to me that all of them follow the same patron when come into attack. I know that the GSS are better in spot the enemy and can came again and again during the battle. But I think that there have to be some other differences. Example: a P-47 and a B-25 seems to attack in the same way: they localize the target and start to shot their weapons. What I think is that the B-25 pilots didn’t see their objectives. The B-25 flew at medium or high altitude and drop their bombs where their were ordered. I don’t think that they saw the objective they were bombarding unless it was a bridge, a big fortification or a train road. What I mean is that seems logical that a Typhoon or a P-47 attacks a truck in spite of a AT-gun, but I feel that a B-25 should attack the hexagon that it have be ordered to attack. To put in another way: I think that medium and heavy bombers should behave more like artillery than as airplanes. (I read on another topic that we will probably have B-17 soon, I think that this is specially applicable to them)