OCC Field 18Marine Corps photo by Lance Cpl. William Hester. Released for public use.

MOS OCC Field 18: Tank & Assault Amphibious Vehicle

For additional information, see the official Department of the Navy Headquarters Marine Corps MOS Manual:
Click here, 851 page PDF opens in a new window. Your Place to Connect & Share® with other family members with a Marine in these MOS Schools is our Official MarineParents.com MOS Facebook Group.
Specialty School Location FB Page FB Page2
1812 Armor Marine
Tank crewmen are responsible for all aspects of the M1A1 tank. They understand how to grease, maintain, and prepare M1A1 tanks for deployments and for combat operations.
Fort Benning, GA    
1833 Assault Amphibious Vehicle (AAV) Crewmember
AAV crewmen are trained to do basic echelon 1 maintenance on Assault Amphibious Vehicles. They are experts at manning onboard weapon systems, communications, tactical maneuvers, and using tactical employment methods to assist other Marines in the field.
Camp Pendleton, CA FB Group FB Group 2
1834 Amphibious Combat Vehicle (ACV) Crewmember
(Ranks: MGySgt to Pvt) Amphibious Combat Vehicle Crewmember performs various duties incident to the operation and maintenance of the vehicle, to include tactical employment, precision gunnery using on board vehicle weapon systems, and maneuver.
Camp Pendleton, CA FB Group FB Group 2
1867 M1A1 Tank Master Gunner
(Ranks: MGySgt to Sgt) The M1A1 Tank Master Gunner is the subject matter expert in the employment and training of all weapon systems organic to a Tank Battalion. Tank Master Gunners are special Staff Officers responsible to the commanders at all levels and staff in the planning, development, conduct, evaluation and monitoring of all live fire and simulations training program.
Not Listed    
1868 Assault Amphibious Master Gunner
(Ranks: MGySgt to Sgt) The Marine AA Master Gunner is an MGySgt to Sgt specifically trained in the employment and training of AA Company and Battalion organic weapons, gear and assigned personnel and in the basics of AA Gunnery as defined by the current version of MCWP 3-12.2 Heavy Brigade Combat Team (HBCT) Gunnery Manual.
Not Listed    
1869 Senior Armor SNCO
(Ranks: MGySgt to GySgt) The Senior Armor SNCO serves as the senior enlisted technical and tactical advisor to the Commander on Tank operations. Additionally, he advises the commander on the condition, care and economical use of unit resources and equipment.
Not Listed    
Click the hashtag below for the Guide on this OCC in our Facebook Group.
#OccField18 includes the following MOS:
1812 Armor Marine, MOS School:  Fort Benning, GA
1833 Assault Amphibious Vehicle (AAV) Crewmember, MOS School:  Camp Pendleton, CA
1834 Amphibious Combat Vehicle (ACV) Crewmember, MOS School:  Camp Pendleton, CA
1867 M1A1 Tank Master Gunner, MOS School:  N/A
1868 Assault Amphibious Master Gunner, MOS School:  N/A
1869 Senior Armor SNCO, MOS School:  N/A
EGA Shop, purchase Marine Corps Clothing and Support Our Troops at the same time!
Marine Parents and the Marine Corps
Recruit Parents
Whats After Boot Camp
After The Corps