Best to unlock the TT over all ranks. The canadian modded 2A4 has no real advantage, but is a toxic BR. For a tiny bit more armor, better thermals and better shell (which wont change the way you have to aim, you need to shot the same spots anyways).
Two front pack is fun.
For early BR sealclubbing use the KV1. It used to be a premium for golden eagles. But nowadays its marketplace only.
French n British sorta deserve stabs and autoloaders after that much low tier pain. Also the 30mm autocannon makes it a painful to deal with. Iād probably get the Turm, although u have to deal with only being able to research up to rank VI. The two fronts pack would be good for low tier.