Its typical Battlefield issue. It is very noticable when you're parking on obstacle like rock or trench wall, your tank starts moving a little and then moves back messing up your aiming and shaking the screen. The issue is that client thinks that your tank is sliding just a little bit while server thinks tank is stable and instantly moves tank back. Or the other way, client thinks tank is stable and doesn't move while server thinks it slides a little and corrects position on client. This instant movement of the tank really messes up your aiming and sometimes even makes screen shake like you just hit the wall and suddenly stopped. I been noticing this bug since BC2 times, still not fixed after 10 years, pretty much a bad trait of Frostbyte's networking at this point.