Editing Gunnery sergeant (section)

==Responsibilities==
{{more citations needed section|date=February 2021}}
{{Cleanup rewrite|date=December 2021}}
Gunnery sergeants in [[infantry]] units typically serve in the [[billet]] of "company gunnery sergeant" or as the [[platoon sergeant]] of 23–69 Marines in a reconnaissance platoon or a crew-served weapons platoon (i.e., [[machine gun]]s, mortars, assault weapons/rockets, and anti-tank missiles).{{citation needed|date=February 2021}} In artillery batteries, gunnery sergeants serve as the "battery gunnery sergeant" in the headquarters section of the firing battery's 94-member firing platoon. In tank and assault amphibian units gunnery sergeants may serve as a platoon sergeant of a 16-member platoon of four tanks or a 39-member platoon of 12 [[amphibious assault vehicle]]s (AAVs), respectively. Tank and assault amphibian gunnery sergeants are also assigned as section leaders, in charge of either two tanks and 8 Marines or three AAVs and 9 Marines. Gunnery sergeants serving as platoon sergeants perform essentially the same duties as staff sergeant [[platoon sergeant]]s, with the additional responsibility of supervising other staff non-commissioned officers (i.e., the gunnery/staff sergeants leading the organic sections of the platoon).

The [[Company (military unit)|company]]/[[Artillery battery|battery]] gunnery sergeant serves as the unit's operations chief and works with the [[executive officer]] to plan and coordinate unit training and operations.{{citation needed|date=February 2021}} In combat, as a member of the unit's command group, he/she serves as a tactical adviser to the commanding officer/battery commander regarding employment of the unit and assists in operating the command post or tactical operations center. In garrison, he/she is responsible to the company/battery commander for supervising and coordinating individual training for the enlisted members of the company or battery and may assist the company/battery first sergeant in the administration and non-tactical leadership of the unit and by supervising the property (logistics) NCO, advising the officers, mentoring subordinate ranking Marines, and performing other duties as assigned. The company/battery gunnery sergeant has been described as a "hands on disciplinarian". An approximate former equivalent in the [[United States Army]] would have been "field first sergeant".

Gunnery sergeants also serve as senior staff non-commissioned officers in military staff sections and headquarters and service companies and headquarters batteries at battalion/squadron, regiment/group, and division/wing headquarters levels. Typical gunnery sergeant billets in combat support companies and battalion, regiment, and division headquarters are: Personnel Administration Chief, Staff Secretary Personnel/Administration Clerk, Administration Assistance Chief, Division Reproduction NCO, Equal Opportunity Advisor, Human Affairs NCO, Career Planner, Intelligence Chief, Operations Chief, Operations Assistant, Watch Team NCOIC, Schools Coordinator, MAGTF Plans Chief, Cinematography Specialist, Logistics Chief, Embarkation Chief, Infantry Weapons Chief, Analyst and Review Fiscal Chief, Information Systems Maintenance Chief, Public Affairs Chief, Communications-Electronics Maintenance Section Chief, Radio Chief, Wire Chief, Motor Transport Chief, Battery Motor Transport Chief, Roadmaster, Assistant Roadmaster, Maintenance Chief, Assistant Maintenance Chief, Management Team Inspector, Engineer Equipment Chief, and Mess Manager.

In Command Element, Combat Logistics Element, and Aviation Combat Element organizations, gunnery sergeants serve in basically similar positions of responsibility, authority, and accountability as their Ground Combat Element counterparts, with perhaps slightly different titles, such as Division/Branch Chief/NCOIC or Department SNCOIC (Staff Non-Commissioned Officer-In-Charge) in the aircraft maintenance department of a Marine aircraft squadron. Non Fleet Marine Force (or other operating forces) assignments may include supervisory or staff positions in recruiting, drill instructor, Marine Security Guard, Naval ROTC instructor or service school instructor, and major/joint/combined headquarters commands.