Hats off to
Trebian for spotting this anomaly - from the same manufacturer (I think Tamiya, via Warlord Games) totally different scales of Panzer Commander - both of which are supposed to be representing a 28mm scaled figure (see below, the Tiger I Commander [on the right] seems to be the correct scale, whereas the Tiger II Commander [on the left] is a bit to much of a "big boy" and would really struggle to slip in and out the turret without being "greased-up"):
I removed the "big chap" from the Tiger II and just "closed up" the tank for action! Problem solved!
Postscript: Excuse the blurry picture below - but he even looks big to other (Allied) tank commander figures from other Warlord kits (see below - and and superman?):
It shows more clearly when you click and expand the photograph.