10 guys yelling into the intercome where planes are is not much use to a pilot of any plane. The idea that a pilot could use this information to maneuver defensively seems to be conjured argument to support F3 mode. "Break hard left now!" from a turret gunner? And the pilot acted on it? really? Bomber pilots fly straight and level and the gunners defend. The pilot goesn't need to know where they are to dodge them.
As for those who make the argument that F3 is needed to replace the missing gunner communication of where the enemy planes are, that argument seems just as conjured. It takes a milisecond to move to a new gun position. It takes a lot longer for a gunner on an intercom to tell you where a enemy plane is or that one is inbound.
In the end, you need to be in the bombsite to drop, and you need to be in the gunner position to shoot at incoming planes. F3 does not aliviate that problem.
I can't see the purpose for F3 other than to give pilots information they can act on, that no real pilot would ever have. So in that regard, in my opinion, it doesn't compensate for the missing capability of an actual crew because there is no actual missing capability. It does grant S.A. superpowers to a pilot that are "gamey"
If there is no missing capability. Why is F3 mode ever needed? In my opinion, it isn't and should be removed on every plane.
Vinkman