As a general rule, how do company officers communicate with their division/group/sector officer?

Communication between company officers and their division/group/sector officer typically occurs through established channels that ensure clarity and reliability, which is why utilizing the Incident Command (IC) via radio is the favored method. This approach allows for effective real-time dissemination of information, ensuring that all relevant details are communicated promptly and accurately. The structure of incident command necessitates maintaining a clear line of authority and information flow, and the radio serves as a reliable tool for this purpose.

Face-to-face communication, while valuable in certain situations, can often be inefficient during active incidents where time is critical. Hand signals may be useful in very specific scenarios but lack the ability to convey complex information or details that are necessary for coordination. The mention of "mind melding" is more of a humorous or fictitious concept rather than a practical method of communication in a professional setting. Therefore, using the radio channels through the IC ensures that communication is standardized and effective for managing operations.