80% damage to p4 is still joke, chances you going to hit tank in first place are next to zero unless it's rammed, snared and you're playing on small map and even then you're not even killing P4, by the time you'll get this offmap chances are you're already fighting against elefants and panthers.
That strafe is as useless as CAS AT strafe.
It should be 180%. Maybe even damage the next tank that comes in