Does this mean a ZSU 23-4 as well?
My father was an Airborne Ranger in Vietnam. He's told me of an encounter he had with a PT-76. He and his squad had been tracking three of them on the opposite bank of a river. When they finally decided to cross, they ambushed them with LAW rockets. One which was hit in the tracks starting spinning its turret while firing the coaxial machine gun, which caused his men some trouble. They finally destroyed it with a LAW. He said those rockets made short work of them, given the PT-76's light armor.
A lot of things are behind the vehicles we model.
Thanks,
Matt.