No, but they can now kills things pretty handily.
Yes, Einstein. The difference between before the patch and now is that the 222 can potentially end the game and not every soviet opener has AT nade before 5min. Well, now they have to.
Scout cars have the same dps than before the update. Only upgraded scout cars don't lose their firepower now. So please everything scout car related was possible before patch except the up gunned, which cost munitions and prevents early shreks or flamer halftrack.