@Crells: All vehicle carried flame effects are currently too effective at retreat killing.
Happy now?
The KV-8 as pointed out is not quick enough to chase you down. the m3 with CE can A) be killed inside the vehicle, though slower, and B) it is extremly easy to kill to all forms of AT, you faust it and it will be backing away, if it chases a retreating squad too long you can move another form of at to bring it down.
The flametrack is hard to bring down, at nades do little damage to it, it can surive to shots from a zis giving it more than enough time to back away.
I agree that flames in general are too strong vs retreating infantry but the flametrack is the worst of the worst in this regard.