And there were only a handfull of t34s ever used for ramming... ^^
In fairness... can we please stop bringing up "realism" issues in arguments? Ost and Wehrmacht had Ostwinds. Only 40 were ever built in reality yet you might see 3 of them in a game fielded by one player.
The 50 cal on an m8 does tons of damage, yet the 4 of them on a quad don't do much more.
The Firefly in-game (vOCH) was a glass cannon. If you want something like that just call it an m10 Achilles, which was EXACTLY the role filled by the vCOH Firefly (17pdr on an m10) and the Brits made over a thousand of them.
They added that mechanic and it is part of the "vanilla" COH2.