Which system assists in determining the firing data of the M119A3?

The Advanced Field Artillery Tactical Data System (AFATDS) is the correct choice as it plays a critical role in determining the firing data of the M119A3 howitzer. AFATDS is an automated command and control system designed to assist artillery units in processing data and generating fire missions. It integrates various inputs, including target location and environmental conditions, to calculate accurate firing solutions that ensure precision targeting. The system enhances coordination within the artillery community, providing the necessary information for effective and efficient artillery operations.

In contrast, while the other systems listed have their specific roles, they do not primarily focus on the calculation of firing data for the M119A3. The Field Artillery Tactical Operations System (FATOS) is related to higher-level tactical planning but does not directly manage firing data. The Artillery Fire Control System (AFCS) offers important functions for fire control, yet AFATDS is a more advanced system that encompasses a wider range of artillery operations. The Mobile Artillery Command System (MACS), although it supports mobile command and control, does not specifically provide firing data calculation techniques essential for use with the M119A3.