What signal indicates a lack of understanding of a command?

The signal that indicates a lack of understanding of a command is characterized by the gesture of shrugging shoulders with arms raised. This action universally conveys confusion or uncertainty, often interpreted as a non-verbal way of saying "I don't know" or "I don't understand."

In the context of fire team operations, it is crucial for team members to communicate their understanding or lack thereof effectively. Understanding commands is vital for the success of tactical operations, and non-verbal signals help facilitate that communication. A shrug often signifies that the person is unsure how to proceed or has not comprehended the instruction given, making it a clear and recognized indicator in a team setting.

The other signals, while they may convey various emotions or states, do not specifically articulate confusion or lack of understanding as effectively as the shrugging gesture.