So far all my comments and suggestions have been as well received as [insert joke here], but for S.A.G. I will post my suggestion. I believe the ISU-152 should be a one-time call-in like the Jadgpanther and King Tiger, but have its manpower cost reduced. Mainly because it seems to take much more of a beating that a multiple call-in unit like the Tiger or Pershing. I also witnessed it almost kill a King Tiger in one shot. The fact that it has a large splash damage radius supports my point. Many of you probably disagree but maybe not.