So, our early war set up is pretty lacking, particularly for tanks. A Panzer III would help fill in the set, and give us another actual tank besides the T-34. Infact, with multiple models of the Panzer III, the T-34 might even become perked.
In addition to just getting the Panzer III, it would also give us two additional things.
1) The hull for the StuG III, infact it gives us the hulls for SEVERAL StuG III's. We could get an early Ausf A with the StuK 39 L'24, an Ausf F with the StuK 40 L'43, and a late Ausf G with the StuK 40 L'48.
2) the cannon for both the SdKfz 251/10, and the SdKfz 234/2 Puma armored car.
To do things right, we would have to add several variants, although we could get by with 2, if we just added an Ausf F, and the Ausf L, but we couldn't really run any North Africa setups unless we wanted the axis to be either under-represented or over-represented with their tanks. And if we add the Panzer III, we might as well do it right.
Ausf. F: 37mm KwK 36, penetrating ~45mm of armor at 100m, 50mm L'42 penetrating 65mm of armor at 100m, 3 7.62mm Mg 34's (one in the hull, two coaxil to the KwK 36). Armor is 30mm all around on the turret and gun mantle, 30mm on the hull front and sides, and 21mm on the back. 25mph
Ausf J: 50mm L'42 or 50mm L'60 penetrating about 82mm at 100m with the L'60, 2 7.92mm MG's. Armor is 30mm all around on the turret, 50mm on the gun mantle, 50mm on the hull front and rear, and 30mm on the hull side. 25mph.
Ausf. L: 50mm L'60, and 2 7.92mm MG's. armor is 57mm on the turret front, 30mm on the turret sides and rear, 70mm on the gun mantle, 70mm on the hull front, 30mm on the hull side, and 50mm on the hull rear.
The Ausf. L could even be used for a Krusk scenario.