Skill Level 1 Employs, fires, and recovers anti-personnel and anti–tank mines. Performs self extraction from a mine field. Locates and neutralizes mines. Navigates from one point on the ground to another. Orients a map. Operates and maintains communications equipment and operates in a radio net. Operates in a NBC contaminated area. Emplace and recover early warning devises. Constructs and camouflages individual/crew served weapons firing position. 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.

Skill Level 2 Performs duties of previous skill level. Leads and controls mortar squads. Supervises and trains subordinate personnel. Provides tactical and technical guidance to subordinates and professional support to subordinates and superiors in the accomplishment of their duties. 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 lay mortars. Prepares mortar ballistic computer for operation.

Skill Level 3 Performs duties of previous skill level. Leads a mortar section. Provides tactical and technical guidance to subordinates and professional support to both subordinates and superiors in the accomplishment of their duties. 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 lay mortars. Consolidates and reorganizes a mortar squad. Supervises fire direction center personnel.

Skill Level 4 Performs duties of previous skill level. Leads mortar or infantry weapons platoon. Assists in planning (to include fire planning), organizing, directing, supervising, training, coordinating, and reporting activities of subordinate mortar sections and squads. Provides tactical and technical guidance to subordinates and professional support to subordinates and superiors in the accomplishment of their duties. 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.

Skill Level 5 Performs duties shown in preceding level of skill. Supervises a mortar platoon. Assists in planning (to include fire planning), organizing, directing, supervising, training, coordinating, and reporting activities of subordinate mortar sections and squads. Provides tactical and technical guidance to subordinates and professional support to both subordinates and superiors, which also includes recommendations in the accomplishment of their duties. Serves as the principal noncommissioned officer in an infantry headquarters and headquarters company and supervises the processing of operation and intelligence information in an infantry battalion or higher level unit. Plans, coordinates, supervises, and participates in activities pertaining to organization, training, and combat operations and intelligence of units at battalion or higher level.