Brent nice comment on the tanks flipping over, the only time you see that is when you drive like a madman in Battlefield 42!! I even tend to play this game by not thinking to often about bogging but you start to think about it when you are playing in a game and its your last Tiger left and it won't move!!
By the way, do the tanks stay immobilized for the entire game? what would be neat would be to have a repair truck available like in Codenamed Panzers phase one, great comments