Combat Center Marines and family members and personnel participate in the 2012 Coyote Mud Run Oct. 26 and 27. The Marine Corps Communication-Electronics School organized the 10 kilometer race with 29 obstacles that consisted of mud crawls, wall climbs and ice baths. - Combat Center Marines and family members and personnel participate in the 2012 Coyote Mud Run Oct. 26 and 27. The Marine Corps Communication-Electronics School organized the 10 kilometer race with 29 obstacles that consisted of mud crawls, wall climbs and ice baths.