It get to vet 3 quite often. In addition the argument makes no sense. A unit should be balanced at all vet level not just vet 0.
Yes.
And can you guess what we call units that don't perform at vet0 compared to stock alternatives?
M4C doesn't have a place in USF roster, regardless of vet bonuses it might or might not achieve and even then, it should perform accordingly to make it appealing over stock M4.
It is a nice alternative for T34, but not M4.
EZ8 would be a much better choice then trying to make M4C appealing.