A Camp Pendleton Marine scans the water, searching for a teammate to pass to during a combat water polo game, May 16, at Camp Pendleton’s 13 Area Pool. Combat water polo was modified from the traditional sport of water polo to provide Marines and sailors the increased safety of a shallow playing field while maintaining the difficulty by adding combat boots and utilities. - A Camp Pendleton Marine scans the water, searching for a teammate to pass to during a combat water polo game, May 16, at Camp Pendleton’s 13 Area Pool. Combat water polo was modified from the traditional sport of water polo to provide Marines and sailors the increased safety of a shallow playing field while maintaining the difficulty by adding combat boots and utilities.