I dont think it's undermodeled,
Last Night I rolled a T34, I was heading for Bish Spawn Point, OTW there, My Squaddie was harassing a Panzer IV in a IL2, I heard him firing so I did a U Turn around a small hill, and there he was at about 100 Yards, with his kiester lined up with my gun, WAM! 76mm Enema. He exploded.
Turned back around for Spawn Point, Saw some Tracer fire over a large hill, got to the top and I was overlooking the enemy spawn point, A lone Ostwind was parked firing at friendly aircraft.
I manuevered closer but the jig was up, he opened fire and I took heavy 37mm fire, I was taking hits and ricochets, I just dropped it into 4th and raced at him, Taking hits all the way, Then a Panzer IV spawned.
I stopped no more than 25 yards from the Ostwind, Still rolling I jumped to the turret, WAM! Ostwind explodes.
Adjust for Panzer IV about 100 Yards, WAM! Panzer Smokes and ends flight.
OTW back to field, See another Ostwind coming close to field, I chase him down, but while I was occupied, I must have taken a Tank round, and my engine goes dead. I end flight and get a Ditch!

I think the T34 is a beast. Fast as Hell, and the Gun is Great, Some may say it is slow to reload and it is, but it doesnt matter to me, Fire and Manuever, Fire and Manuever. Thats how you do it in the T34, No more spawn camping in this Tank.