I think there were several entities shooting or at least several shots on target. Both tracks have been destroyed and there's a hole in the hull at the junction of hull/turret just in front of the bow gunner. That alone would have destroyed it. The open hatches in the turret seem to have been sooted up from fire. Road wheel and idler wheels/bogie wheels are scattered...this one took a catastrophic hit. I think it cooked just short of a full ammo explosion...