Which of the following methods is NOT part of the Marine rifle squad's advance methods?

The correct answer indicates that machine gun support is not classified as an advance method specific to the Marine rifle squad. In a rifle squad's movement tactics, the focus is primarily on individual and team-based maneuvers to advance toward an objective while maintaining contact with the enemy and ensuring cover and concealment.

The squad rush, fire team rush, and individual rush are all methods that emphasize coordinated movement while minimizing exposure to enemy fire. These techniques involve tactical advances where Marines move in groups or as individuals to cover ground quickly and effectively.

In contrast, machine gun support serves a different purpose within the squad's operations. It provides suppression or covering fire to protect the advancing Marines but does not constitute a method of advancing itself. Instead, it is a support mechanism that helps facilitate the advancement of infantry by suppressing enemy positions during movement. Understanding these distinct roles within squad tactics allows Marines to deploy effectively in combat scenarios.