Bug or not?

Dose any one notice that some ussr tank like T80-bvm’s engine, if they be hit from 6 o’clock, there’s only one fragment wave will be produced, but not two after the update(it means there are 2 waves would be produce before the SEEK AND DESTROY update). Also if you hit the face of them there is less fragment will be produce which compare with the hit before the update(the places that I test to hit is the junction of the turret and the tank’s body), so if that is a bug?

anyone…