Yup, I'm asking for a panzer III again.
I want the Panzer III Ausf J (for early war, to combat the T-34), and the Ausf L for mid/late war (because it would be fun to drive a Panzer III in an arena dominated by M4's, and Tigers).
Ausf. J
Front armor: 50 mm plate
50mm KwK38 L42
40 km/h (25 mph) road, 20 km/h (12 mph) off road
Ausf. L
Front armor: 50mm+20mm plate
50mm KwK39 L60
40 km/h (25 mph) road, 20 km/h (12 mph) off road
Frontal armor is just 10mm thinner than that of the Panzer IV. Gun would be capable of dealing with all tanks, given you would have to get in close for most.