Have you ever used other viewing ports in a tank beside gun sight or front driver one? Me neither!
For me the system of viewing ports in a tank should work something like in planes now with a bit of snapping;
You would have a free control of your head in tank just like in planes and by moving head you would be able to sellect a viewing port you want to snap on by clicking on it. This way the “all viewing ports in a tank are usable by the player” mechanic will be much better than cycling animations like now.
I am especially talking about german tanks. The comander in this had a special coupola that provided him with excellent vision, but in game he is literally unusable cose if you want to look behind you for example you would have to cycle through all animations to get to that specific port you want to see through
