Which of the following is NOT one of the five methods of scanning?

The five methods of scanning used in the context of situational awareness and target acquisition include rapid scanning, horizontal scanning, detailed searches, and other established techniques that help maintain a clear understanding of the battlefield environment. Reactive scanning, however, is not recognized as one of these methods.

Rapid scanning allows for quick assessments of broad areas, while horizontal scanning helps maintain a visual sweep across a set plane. Detailed searches involve a thorough examination of specific, pre-determined areas of interest. The absence of reactive scanning among these recognized methods indicates that it does not serve as a formal technique for understanding or interpreting battlefield scenarios, primarily because it suggests a response to stimuli rather than a proactive, structured approach to information gathering. Understanding these scanning techniques is crucial for effective situational awareness and operational success.