Sergeant Maj. Rogelio Deleon swims in a combat pool at Marine Corps Air Station Cherry Point, N.C., Feb. 17, 2016. More than 85 noncommissioned officers with Marine Wing Communications Squadron 28 participated in the physical training exercise “Chaos,” which tested their warfighting abilities: strength, communication and dependability. During the training the Marines were put into fire teams where they had to navigate the obstacle course, trek through the combat pool and hike one-mile with a simulated casualty and assault load. The purpose of the event was to build on unit cohesion, esprit de corps and mental and physical resiliency. Deleon is the sergeant major of MWCS-28. - Sergeant Maj. Rogelio Deleon swims in a combat pool at Marine Corps Air Station Cherry Point, N.C., Feb. 17, 2016. More than 85 noncommissioned officers with Marine Wing Communications Squadron 28 participated in the physical training exercise “Chaos,” which tested their warfighting abilities: strength, communication and dependability. During the training the Marines were put into fire teams where they had to navigate the obstacle course, trek through the combat pool and hike one-mile with a simulated casualty and assault load. The purpose of the event was to build on unit cohesion, esprit de corps and mental and physical resiliency. Deleon is the sergeant major of MWCS-28.