Rip
I believe a 75mm M4A3 and the T34/85 all as non perk would be excellent additions to AH. The T34/85 has gun parity with the panzer IVH and supperior armour and speed but no AAmg.
The Sheman has supperior speed and armour to the Panzer IV but inferior gun(still kill capable though) With a 50Cal AAMG. Maybe with gyro sight too.
The cheapest perk would be a Sherman M4A3e8(debate on that still I bet) Wich has better gun then the T34, tiny bit slower and simular armour. with AAMG.
The panther the IS2m the Sherman Jumbo(76) obviosly perk tanks)
I think people dont think about how important that AAMG is in this game. The good top armour, AAMG and fast rate of fire for HE rounds make the Sherman a good choice for this game. The T34/85 would eat it up tank to tank..but scary to think about rolling around in a tank with NO top gun at all. Much less the 50 cal of the Sherman.
They HAVE to fix the armour damage and effect model of the game though...
And introduce a few more ammo types like APCR and AFPFDS and HEAT