Which section is primarily responsible for running the Operations Center for MWSS?

The S-3 section is primarily responsible for Operations in a Marine Wing Support Squadron (MWSS). This section handles the planning and execution of operations, ensuring that all necessary resources are effectively coordinated and managed to support operational missions. The S-3 is tasked with maintaining situational awareness and overseeing the command and control functions in the Operations Center.

In contrast, the S-1 deals with personnel administration and management, the S-4 focuses on logistics and supply chain management, and the S-6 is responsible for communication and information systems. Each of these sections plays a critical role, but the specific responsibility for running the Operations Center falls to the S-3 due to its emphasis on operational planning and execution.