What type of message indicates the amount of ammunition needed on board?

The Ship Fill Message is specifically designed to indicate the amount of ammunition required on board a vessel. This message is crucial for ensuring that the ship has the necessary munitions for its operational needs and to maintain combat readiness. It typically provides a detailed account of the types and quantities of ammunition that should be loaded onto the vessel, accounting for factors such as mission requirements and current stock levels.

This type of message is critical for logistical planning and coordination within naval operations, ensuring that munitions supply aligns with operational demands. Thus, it plays a vital role in the effective management of ammunition onboard a ship, facilitating timely procurement and delivery of munitions.