Which of the following is an indicator of operational effectiveness in fire control systems?

Operational effectiveness in fire control systems is best measured by the success rate in intercepting threats. This metric directly reflects how well the system is performing its primary function: to detect, track, and engage incoming threats. A high success rate indicates that the fire control system is capable of accurately identifying and neutralizing hostile targets, which is the ultimate goal of such systems.

Assessing operational effectiveness through threat interception success also encompasses various other components of the system, including its reliability, responsiveness, and overall capability to handle operational scenarios. These factors combined contribute to the system's overall effectiveness in a real-world context.

The other choices, while they might relate to specific facets of system performance or operational costs, do not directly measure the core effectiveness in achieving the fundamental objective of fire control systems. Real-time connection errors may indicate issues with communication but do not reflect the overall performance outcome. The cost of equipment is an important consideration for budgetary purposes but does not provide a measure of operational effectiveness. Speed of target identification is relevant; however, it is only one aspect of a successful engagement process, and without effective interception actions, the mere speed of identification would not contribute meaningfully to operational effectiveness.