Tactical air operations module/air defense systems technicians perform and supervise installation, alignment, inspection, testing, maintenance and repair of electronic assemblies and subassemblies, fiber optic cables, and system software within the Tactical Air Operations Center (TAOC) of the Marine Air Control Squadron (MACS). Equipment includes the Tactical Air Operations Module (TAOM), Air Defense Communications Platform (ADCP), and the Sector Anti-air Warfare Facility (SAAWF).

Electronics maintenance chiefs supervise and instruct enlisted personnel in the performance of Marine Air Command and Control Systems (MACCS) and maintenance functions. Provide information concerning the capabilities, limitations, and reliability of MACCS and other equipment. Instruct operation and maintenance of the MACCS. Perform staff support duties in formulating and implementing maintenance and supply plans, provisioning the MACCS, and preparing publications and training materials.