m113 APC

https://www.cgtrader.com/3d-models/military/vehicle/m113-apc-tank-328a384e-cd4e-4554-b947-d89fb326078d

The M113 was the first aluminum hull combat vehicle to be put into mass production. Much lighter than earlier similar vehicles, its aluminum armor was designed to be thick enough to protect the crew and passengers against small arms fire, but light enough that the vehicle was air transportable and moderately amphibious.