Without having really tested it, I do not think so.
Even the generic infantry counters had their limitations and Infantry has less 'options' than AFV generally have.
It has been quite some time since I meddled with the generic counters but by memory, they only went half way, so I never really used them.
Thanks for the answer! We are going to play OtO-22 Inferno at Krupki, and I can't find the SU-57(a) in the countermix, so I have to make my own. I guess I'll just write "r19" for the MP and "_57L" for the MA. The rest of the important info I'll put in a label.