On 12 March 2015, the Communication Training Battalion was formally activated which officially consolidated all Enlisted and Officer Communication Training for the Marine Corps under one Battalion which provides quality instruction at the basic and advanced levels for Marine enlisted and officers, as well as military personnel from other services and nations.

The Communication Officers School was formerly established during the height of World War II on 1 June 1944, under the leadership of Lieutenant Colonel C. Nelson.

The four-week course was designed to give recent Basic School graduates a background in communications prior to reporting to the Fleet Marine Forces.

In 2002, with the establishment of the Expeditionary Warfare School—which combined elements of both Marine Corps career-level PME curricula (the Amphibious Warfare School and CCSC)—Communications School refocused its advanced instruction through the addition of the eight-week C4 Planners Course (C4PC), designed primarily for captains and master sergeants.

Communications School was moved to Marine Corps Air Ground Combat Center, Twentynine Palms in July and August 2014.

Currently, BCOC is a 20-week Program of Instruction (POI), conducted twice per year aboard Marine Corps Air Ground Combat Center in Twentynine Palms, California.

The majority of the students begin BCOC following their graduation from The Basic School, and are awarded with the 0602 MOS upon successful completion of the course.

The mission is to provide instruction on planning for the employment of common user network and subscriber terminal equipment within a Marine Air Ground Task Force as a component of a Joint Task Force (JTF) with external connectivity to Unified Combatant Commands and national level systems.

Also led by the Advance Instruction Group, these warrant officer courses are focused on technical planning training and education in each functional area.

Thirty class seats are available on a first-come, first-served basis to C4 (MOS 0610, 0620, 0650) Warrant Officers (WO1-CWO5) serving in the operational forces, reserve component, and supporting establishment.

The Advanced Communications Seminar (ACS) is a Total Force formal training program for senior officers (CWO2 through CWO5 and Capt through Col) with the MOS 0602.

The mission of ACS is to provide current and necessary information to optimize the effectiveness of officers in G-6/J-6 billets at the Marine Expeditionary Force (MEF), Component, Theater, or supporting establishment level.