What brevity term means the laser designator system is inoperative?

The brevity term that indicates the laser designator system is inoperative is "Deadeye." This term is utilized in military communications to promptly convey critical information about the status of laser designators, which are essential for guiding precision munitions. The use of "Deadeye" efficiently informs personnel that the laser capability is non-functional, allowing for quick reassessment of targeting options and adjustments in tactics.

Other terms mentioned serve different purposes. "Snake" typically refers to a type of missile or ordnance delivery, "Contact" indicates that a unit has visual identification of an enemy force or target, and "Tally" signifies that a unit has visual confirmation of a target or asset. Understanding these terms and their specific meanings is crucial for effective communication during operations.