How does a heavy machine gun differ from a light machine gun in its employment?

The distinction between a heavy machine gun and a light machine gun is primarily found in their employment roles, capabilities, and physical characteristics. A heavy machine gun is typically mounted for sustained fire, which means it is often deployed in a fixed position or attached to a platform that allows for prolonged operations without the need for frequent relocation. This characteristic lends itself well to providing suppressive fire or creating defensive fire positions, contributing to the overall firepower and cover for ground troops.

Conversely, a light machine gun is designed to be portable, allowing personnel to carry and maneuver with it more easily across different terrains and situations. This mobility enables infantry squads to engage in close-quarters battles and dynamic operations, where quick relocation and adaptability are crucial.

The other options mischaracterize the capabilities and intended uses of heavy and light machine guns. Heavy machine guns are not exclusive to special forces, they are generally not designed for close combat situations, and while they may have a rapid rate of fire, it is not necessarily higher than that of light machine guns. Instead, heavy machine guns are primarily defined by their ability to deliver sustained fire when mounted, fulfilling roles such as providing suppressive fire support or defense in a more fixed and stable manner.