Have a loaded Indicator for armoured vehicles with slow reloads

[Coalz101]

So, I've been thinking, why when I switch from AP to HE why do I have to guess when its loaded instead of there being some red light that turns green when its loaded or something like that, same thing with switching form main gun to ATGM, why is there no indication as to when the round is in the chamber. I'm sure in real life you'd know when the switch has complete, whether it be some sound or something like that you'd definitely know. So why not get it implemented in PR?