Infantry unit passes MC and assaults tank but fails to kill it.
Infantry reteats to original hex and is marked moved.
What about the tank?
If the Close Assault is unsuccessful, the MMC retreats and is marked Moved and the tank remains unmarked, unless of course it already had an Admin marker on it. If successful, the MMC stays in the hex and is marked w/ a Melee marker; the tank and its Crew are eliminated.