A professional who positions and fires mortar during combat or training operations. Respnsibilities include:

• Selects site and positions mortar utilizing concealment and camouflage procedures to prevent detection by enemy.
• Studies maps and aerial photographs to locate friendly and enemy positions.
• Confers with friendly unit personnel and furnishes information concerning enemy location, troop movement and similar tactical information.
• Drops ammunition into mortar to discharge and fire ammunition at target.
• Observes projectile burst and readjusts mortar to obtain effective hit on target.