What does Solid Snake use to hide himself with?

Solid Snake uses a cardboard box to hide himself primarily because it is a versatile and inconspicuous disguise. The cardboard box serves as a portable hiding spot, allowing him to remain undetected while infiltrating enemy territories or evading enemy guards. By keeping low and blending with his surroundings, the box provides Snake with a temporary cover that often goes unnoticed, enabling him to move stealthily and execute covert operations effectively. Additionally, Snake can customize the cardboard box by cutting holes and using it as a makeshift sniping position or applying camouflage to further enhance his concealment.