As you know that the weapon crew of the vehicle that don't have metal cover like tanks or armored car that reveal the weapon crew like SPGs, or the PE scout cars, i think that not include the driver (he is inside the cockpit), will be kill or atleast stunt when being impacted by heavy fire like being mass shot by MGs, blobs, motar that direct hit that vehicle, AT guns on tanks or emplacement. Maybe i sound like MoW but i think it is a little weird that crew of AT guns and mortar, HMG taking hit but not SPGs's crews.