What is a necessary component of a target number in firing missions?

In firing missions, the necessary component of a target number is the number of rounds. It directly determines the quantity of munitions being delivered onto the target, which is critical for effective engagement. Ensuring that the correct number of rounds is specified allows for proper planning and execution of the attack, considering the target type and desired effects.

While other components like unit code, location coordinates, and type of weapon are important for different aspects of the mission, they do not have the same direct impact on the execution of the fire itself as the number of rounds does. Properly establishing the number of rounds helps to ensure adequate suppression or destruction of the target while managing available resources effectively.