Mud Movement penalties seem low

[Gordons HQ]

This seems an excellent discussion.
I'm afraid I'm not into all the technicalities of it but I do believe movement cost are at present far too generous.
The storm idea sounds good to me apart from the visibility being reduced to 1km which would not always follow with mud.
The only thing I would add is from what I've read and that's pretty extensive about the East Front is that the Mud seemed to effect the Germans far more than the Russians. This was in particular true of the tanks during the early period of the campaign due to the track thickness of the tanks.
I suppose also they were the ones generally advancing during these periods of mud and wanting to cover greater distances.
That's my take on things for waht it's worth.

Cheers,
Gordon