Which classification of MG fires involves little to no manipulation of the gun?

The classification of machine gun fires that involves little to no manipulation of the gun is Fixed Fire. When employing Fixed Fire, the gunner sets the machine gun in a predetermined position with its muzzle aimed at a designated target area. This allows for sustained firing in the same spot without the need for adjusting the gun's angle or position during the engagement. As a result, it maximizes the effectiveness of fire upon a specific target or area while minimizing the physical effort required to reposition the weapon.

In contrast, traversing fire, free gun fire, and swinging traverse fire all require varying degrees of manipulation of the gun. Traversing fire involves moving the gun horizontally to cover a wider area, while swinging traverse fire entails pivoting the gun on a central axis to engage targets that are not directly in front of it. Free gun fire allows the gunner to maneuver the weapon more freely, which inherently involves more active engagement with the weapon system compared to the fixed position of Fixed Fire. Hence, Fixed Fire is unique in its minimal need for adjustments during operation.