What is an example of a visual signal used in fire control?

A rifle shot can indeed serve as a visual signal in certain contexts, but it’s more commonly regarded as an auditory signal. A visual signal is typically something that can be seen rather than heard.

In fire control scenarios, hand signs are particularly effective as they can be used to convey commands or adjustments to fire without the need for audible communication, which might be hindered by distance or noise. Hand signals can be easily observed by personnel within view and can be understood quickly in high-stress situations.

Whistle blasts and flag signals also function as visual or auditory signals, but they may not be as practical or universally recognized compared to standard hand signals in tactical situations. Thus, hand signs are often preferred for clarity and efficiency in communication among team members during operations.