MOS 11C
Indirect Fire Infantryman
Duty Descriptions

11C2O Mortar Section Leader
Mortar Section Leader of a six man 60mm Mortar Section assigned to a Dismounted Reconnaissance Troop; responsible for the health, welfare, morale, and individual training of all assigned Soldiers with a focus on marksmanship, physical fitness, gunner and crew drills, and dismounted reconnaissance operations; assists and advises the Troop Commander on tactical and technical employment of two 60mm mortar systems; supervises the section administrative actions and logistics; oversees maintenance and accountability of all MTOE equipment and assigned property.




Mortar Section Leader (Stryker)
Mortar Section Leader assigned to a Stryker Battalion Combat Team; responsible for the welfare, training, and development of nine Soldiers; assists the FSO, and the Commander in the planning, preparation, and execution of all individual and collective training in preparation for rapid real world deployments; employs company mortar assets in support of combat operations; responsible for the accountability and readiness of two mortar carrier Strykers with assigned 60mm and 120mm mortar systems worth over 8 million dollars.




Mortar Section Sergeant
Mortar Section Sergeant of a six man Airborne Infantry 60mm Mortar Section; responsible for the health, welfare, morale, and individual training with focus on marksmanship, physical fitness, gunner and crew drills, and Airborne operations; assists and advises the Company Commander on tactical and technical employment of two 60mm mortar systems; supervises the section administrative actions and logistics; oversees maintenance and accountability of all MTOE equipment and installation property valued in excess of $250,000.




11C3O Armored Calvary Reconnaissance Troop
Served as a Section Leader of a mounted 120mm mortar carrier in an armored cavalry reconnaissance troop; responsible for the daily duties, morale, health and welfare of 4 Soldiers; receives and processes fire missions for his section; provides accurate and timely fire support of maneuvering mounted and dismounted reconnaissance troops; advises and assists the Platoon Sergeant on the combat employment of mortars; responsible for the maintenance and accountability of over $2 million worth of equipment.




Squad leader
Squad leader of a mortar section with a wartime mission to deploy anywhere in the world as part of a Stryker Brigade Combat Team (SBCT); ensures the welfare, discipline, training, morale, and professional development of eight Soldiers; maintains technical proficiency with the plotting board, Lightweight Handheld Mortar Ballistic Computer (LHMBC) and Mortar Firing Computer System (MFCS); maintains proficiency in all Fire Direction Center (FDC) duties and the employment of the section as a Company Asset; responsibile for the maintenance and accountability of all Squad equipment valued at over $4,000,000.




11C Fire Direction Check Computer 11C20B1
Serves as a Fire Direction Check Computer for a 120mm Mortar Platoon in a fully digitized Combined Arms Battalion; responsible for the training, mentorship, health, moral and welfare of three Soldiers; receives and processes fire missions for the battalion in order to provide accurate and timely fire support; responsible for the supervision of maintenance and accountability of one M577 including basic issue items, communications equipment, and a Mortar Fire Control System; accountable for equipment valued in excess of $500,000.




Section Sergeant 11C30
Serves as a Section Sergeant responsible for the daily duties of 24 Soldiers in a rapid deployment unit; receives and processes fire missions for the battalion for accurate and timely fire support; advises and assists the Platoon Sergeant and Platoon Leader on the combat employment of mortars; responsible for over $2 million worth of equipment for maintenance and accountability; mitigates risk through risk management procedures.




Squad Leader 11C20
Acts as Mortar Squad Leader in a Stryker Infantry Company; responsible for the training, health, morale, welfare and discipline of five Soldiers; keeps the Platoon Sergeant informed of squad status with regards to accountability, combat readiness, education, personnel action and promotions; directly supervises the maintenance and accountability of squad equipment.




Mortar Platoon Sergeant
Responsible for the morale, health, and training of a 23 man Mortar Platoon and the maintenance, accountability, and effective utilization of all platoon-assigned weapons, night observation devices, communications equipment, and individual equipment worth over $2,500,000 including 7 HMMWVs and 8 Mortar Weapon Systems; counsels, disciplines, and develops soldiers and NCOs into competent leaders; maintains the highest state of combat readiness regardless of conditions and personnel changes; advises the Mortar Platoon Leader, the Operations Officer, and the Battalion Commander on the tactical and technical employment of Mortars.




11C2O Mortar Squad Leader
Serves as a Mortar Squad Leader of a light infantry mortar section; prepares for rapid deployment in support of worldwide contingency operations; supports the company with timely and accurate indirect fire; provides fire support computing data for the Section Leader; maintains ammunition records, applies meteorological and registration data, and assumes control of a gun during split operations; ensures the proper tactical employment of mortars during individual gun movements; responsible for training, welfare, morale, and administration of four Soldiers; maintains weapons and equipment valued at over $250,000.




Section Sergeant 11C3O
Leads a mortar section and supervises Fire Direction Center personnel; provides tactical and technical guidance and professional support to both subordinates and superiors; receives and issues orders; coordinates indirect fire support for the mortar section; ensures collection and proper reporting of intelligence data; analyzes terrain; conducts tactical operations for a squad and NBC operations; maintains operational security; prepares, operates, and maintains secure communications equipment; reciprocally lays mortars; consolidates and reorganizes mortar squad.




Squad Leader 11C3P
Squad Leader in a rapid deployable Airborne Cavalry Squadron 120mm and 60mm Mortar Section forward deployed to the Islamic Republic of Afghanistan in support of combat operations; assists the Section Leader on tactical employment and combat training of the section; responsible for the discipline, morale, welfare, and training of a 4 man Airborne Cavalry Mortar squad; ensures the squad's assigned weapons, vehicle, and personnel are combat ready and able to deploy within 18 hours of notification; responsible for the maintenance and accountability of one M998 and all associated equipment valued in excess of $500,000




11C10 Mortarman, Light Infantry
Serves as Mortar Team member in multiple positions such as Gunner, Assistant Gunner, and radio operator in a Mortar Platoon capable of worldwide deployment in support of contingency operations; responsible for the maintenance and welfare of the fire crew and equipment; responsible for the timely and accurate indirect fire support of a light infantry battalion in support of combat operations.




Squad Leader, Light Infantry 11C20B1
Squad Leader in an 81mm/120mm (Medium) mortar platoon, capable of worldwide deployment in support of contingency operations; responsible for the technical and tactical training, health, welfare and physical fitness of five Soldiers; responsible for the timely and accurate indirect fire support of a light infantry battalion engaged in combat operations; responsible for the accountability and maintenance of one HMMWV and $200,000 worth of indirect fire equipment.




Squad Leader 11C2O
Serves as a Squad Leader in a mechanized 120mm Mortar Platoon; responsible for the welfare, health, morale, and training of four Soldiers; responsible for the maintenance and accountability of one M1064A3 mortar carrier and all associated equipment valued in excess of $600,000; controlls the tactical movement of the Squad; emplaces vehicle and Squad into firing positions; ensures the timely and accurate application of firing data; conducts emergency missions as required





10-11C. MOS 11C - Indirect Fire Infantryman, CMF 11

a. Major duties. The indirect fire infantryman serves as a supervisor or as a member of a mortar squad, section, or platoon; employs crew and individual weapons in offensive, defensive and retrograde ground combat tactical operations; duties for MOS 11C at each level of skill are:

(1) MOSC 11C1O. Employs, fires and recovers anti-personnel and anti-tank mines; performs self extraction from a mine field; locates and neutralizes mines; orients a map and navigates from one point on the ground to another; operates and maintains communications equipment and communicates in a radio network; operates in an NBC contaminated area; emplaces and recovers early warning devices; constructs and camouflages individual and crew served weapons firing positions; constructs and camouflages a mortar firing position; maintains mortars and fire control equipment; performs safety checks on mortars; performs as a member of a mortar squad providing indirect fire support.

(2) MOSC 11C2O. Performs duties shown in preceding level skill. Leads and controls mortar squads; supervises and trains subordinate personnel; provides tactical and technical guidance to subordinates; supervises the construction of mortar positions; records operational information on maps; receives and implements combat orders; directs deployment of personnel in offensive, defensive, and retrograde operations; requests, observes, and adjusts indirect supporting fire; supervises subordinate personnel in all phases of individual and mortar equipment maintenance; uses map and map overlays; performs intersection and resection, and determines elevations and grid azimuth; prepares fire plans, target lists, and overlays; prepares and computes firing data using below pivot point and grid method; reciprocally lays mortars; prepares mortar ballistic computer for operation.

(3) MOSC 11C3O. Perform duties shown in preceding level of skill. Leads a mortar section; provides tactical and technical guidance to subordinates; receives and issues orders; coordinates indirect fire support for the mortar; ensures collection and proper reporting of intelligence data to unit; supervises a firing section and various work details; analyzes terrain; conducts tactical operations for a squad and NBC operations; maintains operational security; prepares, operates, and maintains secure communications equipment; reciprocally lays mortars; consolidates and reorganizes a mortar squad; supervises fire direction center personnel.

(4) MOSC 11C4O. Perform duties shown in preceding level of skill. Leads mortar or infantry weapons platoon; assists in planning, organizing, directing, supervising, training, coordinating and reporting activities of subordinate mortar sections and squads; provides tactical and technical guidance to subordinates; supervises occupation of an assembly area; employs NBC defensive team; plans for, supervises preparation of, and conducts NBC operations; performs battle damage assessment; develops a platoon training plan; conducts graphic resection and hasty surveys.




11C Duty Description: The mortar platoon sergeant is the principal assistant to the platoon leader and assists him in all matters pertaining to training and operation of the platoon. He assumes responsibilities of the platoon leader during his absence. In addition, he performs the following:

(1) Inspects and supervises to ensure the platoon leader's orders are executed.

(2) Leads the reconnaissance party and conducts reconnaissance of routes and positions, when required.

(3) Supervises movements, as required. When the platoon is operating in two sections, he normally directly supervises one.

(4) Supervises the preparation of the platoon ground defense.

(5) Supervises camouflage, field hygiene, and sanitation.

(6) Supervises the platoon's security and sleep plans.

(7) Lays the mortars for firing, when required.

(8) Ensures that situation maps are maintained in the FDC.

(9) Ensures available meteorological data is applied to firing data, when appropriate.

(10) Supervises the test firing and zeroing of weapons and boresighting of mortars.

(11) Ensures communication nets are established and personnel use proper radiotelephone operating procedures.

(12) Ensures platoon personnel are trained in their primary job assignments and cross trained to perform key functions within the FDC.

(13) Ensures the required basic load and platoon equipment are on hand.

(14) Monitors ammunition expenditures and ensures ammunition records are maintained.

(15) Submits timely ammunition resupply requests.

(16) Supervises ammunition prestockage, when used.

(17) Ensures maintenance is actively supervised by subordinate leaders.

(18) Coordinates and supervises POL resupply and maintenance support.

(19) Coordinates and supervises vehicle recovery.

(20) Requests fortification materials.

(21) Coordinates resupply needs.

(22) Adjusts personnel as needed and cross-levels personnel within mortar squads to maintain maximum firepower.

(23) Conducts hasty crater analysis and submits SHELREPs and MORTREPs.

(24) Ensures that aiming circles are declinated properly.

(25) Ensures that all necessary safety, borescope, and pullover gauge inspections are performed and recorded.

(26) Coordinates casualty evacuation.

(27) Assists in the preparation of paragraph 4 of the platoon OPORD.

(28) Is the exact same as 11B, but with more responsibility and a longer basic training (OSUT- One Station Unit Training)



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