HLBLY,,,
Not one single instance of a main gun kill verses far more likely? Apples to oranges,, if your gonna go by (far more likely) you've got to leave out the ( not one single instance)
There are accounts of tanks shooting down planes, they have been posted here many times, you not believing them, then deciding on your own, A FAR MORE LIKELY THEORY, is ludicrous
I've never had a tanker tell me he couldn't kill something,
As long as the commander and gunner have a good ability to comunicate, anything is possible