Commander Fire control

Hello everyone, I have been trying in vain for a few days to use the commander fire control on my German Tier 3 vehicles. Could it be that this function is vehicle-dependent and only works on newer vehicles?
Thank you and best regards.

You are correct in it being a vehicle-dependant function. Not all vehicles have it. Most high tier ones too, but it is vehicle dependant.

Thanks for the reply.
Can you name a German low tier vehicle where the commander fire control works?
Best regards.

The first one that I can think of is the M41 if that helps :)