My point in saying you should research this comes from the way HTC has decided to portray tanks altogether. If you find one example that will certainly pork "berm camping," then you will find other examples that will not. So, unless HTC decides to model all tanks realistically as their individual systems were originally, then the tanks should probably remain just as they are. The idea being that every tank is just like the others for each operator.
Now, in detail, the Tiger II I know has a hydraulic turret that is powered from the engine. Turret speed is then tied directly to engine RPM. At high RPM the turret will rotate 360 degrees in ten seconds. At idle it takes a lot longer.
This same system is in place on the one vehicle you do not want to see operate at high RPM, the Wirbelwind.
So, be careful what you wish for.