What action should a boundaryman take upon receiving a casualty call?

When a boundaryman receives a casualty call, the appropriate action is to proceed directly to the scene. This is crucial because a timely response can be instrumental in controlling the situation, mitigating damage, and ensuring the safety of crew members. By moving to the scene promptly, the boundaryman can assess the situation firsthand, begin implementing damage control actions, or establish a perimeter to protect against further damage or hazards.

In emergency scenarios, every second counts, and any delays might exacerbate the situation. The boundaryman has the responsibility of providing an immediate response, so their presence at the scene is vital for coordinating further efforts and communicating effectively with other team members or departments, such as the damage control team or on-scene command.

While other options involve different approaches, their effectiveness is diminished by the immediate necessity to assess and address the casualty without delay. Therefore, proceeding directly to the scene is the most appropriate and critical action for ensuring effective damage control and response.