Which C status indicates that a unit requires significant resources or training to execute its mission?

The C-4 status is indicative of a unit that requires significant resources or training to be able to effectively execute its mission. This classification is crucial because it signifies that the unit currently lacks the necessary capabilities—whether that be due to insufficient personnel, inadequate training, or a lack of essential equipment—to function at an operational level. The C-4 designation serves as a clear communication to higher command about the unit's limitations, allowing for the allocation of support or resources needed to bridge the gap.

In contrast, other statuses may indicate varying degrees of preparedness or readiness, but C-4 specifically highlights a substantial need for improvement before the unit can be expected to successfully carry out its duties. The recognition of this status helps in the planning and strategic deployment of units, ensuring that those which require more substantial assistance are prioritized for resource allocations.