I think the amount of time it takes a turret to turn 360 degrees should be a statistic added to the vehicle class.
Would be nice for those making WW2 tanks and also add some survivability to AT soldiers.
(The direction the turret turns to look for the AT soldier should be somewhat random if the AT gunner's noise is outside the hearing range of the commander when turned out or turned in. Of course, if you get hit you have some idea which direction the shot is coming from.)
Also, tanks should at least point their turret at someone firing a rifle at it to look at their enemy and decide whether he is a danger.