I didn't play "classic" game yet, but it'll be very interesting game if one player got lots of tanks, and other got lots of SS: tank's mobility will go down and all that must be very exiting.
had one of those earlier, were still a nub(think it was my fourth or fifth game or something), so i didnt use b's, so i combod a's and mortars, end of story, the game lasted for 3h, i stacked india and he massed SS on my shores in indiafor hours, only to move around asia and attacking all ports in the end, at which point i had lost
had 6000 kills and 15000 deaths in the end, and as you can see, ultimately, the SS likely win by it's mobility, even though he never got close to break through my defensive line (completely, i kept massing in troops) in the end,my tanks were stuck in india when they were needed in Siam, china and Siberia...