Primary Location: Twentynine Palms, CA, US. Must be a U.S citizen. Security Clearance: Secret. Job Summary. The Marine Corps Tactics and Operations Group (MCTOG) mission is to provide standardized advanced training and certification to Ground Combat Element (GCE) Operations Officers, Operations Chiefs, and select other GCE training specialists in GCE operations, combined arms planning and integration, and unit readiness planning at the company, b...