2 PaK shots kill it, please try playing as Soviet vs OKW AAHT rush.
who cares if 2 pak shots kill it, most light vehicles are killed by 2 pak shots
and i played against a early okw aaht rush often enough, i just got a at gun as my 5th unit which solved the problem because of it's set up time
and the 5cp puma is still a useless piece of trash, early vehicles appear at around 3CP.