The final phase of EOD training is three weeks of EOD Tactical Training at the Naval Amphibious Base in San Diego. This will consist of helicopter insertion (fast-rope, rappel, cast and SPIE), small arms/weapons training, small unit tactics (weapons, self-defense, land navigation, and patrolling), and tactical communications (satellite and high frequency). Upon completion of the EOD training, graduates are assigned to EOD Mobile Units where they gain advanced on-the-job training and experience as members of Combat Expeditionary Support (CES) platoons/companies, Carrier and Expeditionary Strike Group platoons, Naval Special Warfare and SOF Companies, and Marine Mammal Companies.