Gun Computer System (GCS) MK 160 MODs 21 and 22/Electro Optical Sensor System (EOSS) MK 20 MOD 1 Fire Control Technician

GCS MK 160 and EOSS MK 20 Fire Control Technicians maintain and operate gun computer and electro-optical sensor equipment on AEGIS guided missile destroyers and shore support commands. They perform planned and corrective maintenance, operate combat system consoles, conduct watchstanding, and support tactical, training, testing, and evaluation events.