Problem is:
There are (nearly)no working armour formations after 9/'43!!
E.g. in June/'45 all that is available are some flame thrower tank squad and platoon (IIRC) - looks like the old vehicles/formations are phased out in '43, and the new formations only start in '46.
So if you want to "switch sides", and play Italians vs. Germans in late'44, early '45, or Italians vs. Comminist Menace in '45/'46, you'll have no armour at all !!
Can't believe that they only scrapped their tanks, and continued fighting on foot with their old arty, then waited 3 years for the Allies to supply new tanks
