[letku]

Correct me if I'm wrong about this but I don't think most WWII era tanks could fire their main gun while moving.

They could fire the main cannon while moving but it wasn't as accurate as when they where standing still.
It mostly depended on the suspension how stable it made the tank when it was moving
and also to hit a target you needed good targetting optics.

Russian tanks in the early eastern front years usually attacked in large groups trying to get as close as possible at full speed and firing with all there cannons and guns.