When the HSBs return to the pier, what will the ATTWO proceed to do?

The appropriate action for the Advanced Tactical Team Warfare Officer (ATTWO) upon the return of High-Security Boats (HSBs) to the pier is to notify all ships of the posture change. This is critical as it ensures that all units are updated on any changes in the security or operational status, allowing for coordinated responses and maintaining situational awareness across the fleet. Timely communication of posture changes is essential for readiness and operational integrity, particularly in scenarios involving heightened security measures. This action promotes the safety and security of the entire naval operation, as all units need to align their actions and awareness according to the evolving threat landscape or operational status.

Other options, while relevant to security operations, do not represent the immediate priority upon the HSBs' return. Reassessing mission objectives or conducting an inventory of supplies might occur later but are not the first priority in that moment. Initiating a crew rotation schedule could also be part of operational management, but it hinges on the current situation assessment and security posture that must be communicated first to all units involved.