0211 - Counterintelligence/Human Source Intelligence (CI/HUMINT) Specialist                      Cpl - MSgt

The 0211 CI/HUMINT Primary MOS is one of the most sought after MOS's in the Marine Corps. CI/HUMINT Specialists are involved in all facets of planning and conducting CI and HUMINT operations and activities.


CI activities are concerned with identifying and counteracting the threat to friendly forces by hostile intelligence organizations, or by persons engaged in espionage, sabotage, subversion or terrorism.

HUMINT activities are designed to obtain intelligence information where the human being is the primary collection instrument. CI/HUMINT specialists are expected to possess a working knowledge of the organization, operations, and techniques employed by foreign intelligence services and terrorist organizations. 

These collection activities generate usable intelligence that is critical to the intelligence preparation of the battlefield (IPB), identifying locations of threats to friendly forces, High Value Targets, enemy weapons caches, and other useful information to further the Marines mission accomplishment in the AO.  0211's received information from local Iraqis to discover this explosives cache in Iraq in 2009.

0211's are where the rubber meets the road for all CI/HUMINT operations.  0211's are typically found in CI/HUMINT platoons internal to the Marine Corps intelligence battalions, but can be attached to infantry units during task organized combat operations. 0211's are invaluable in counterinsurgency operations.

CI/HUMINT specialists receive highly specialized training.  Entry into the primary MOS 0211 is accomplished by voluntary lateral move as a Corporal, Sergeant, or Staff Sergeant.  Volunteers will be interviewed by a panel of Marine Corps CI/HUMINT Personnel.  If recommended by this panel, they will be sent to a CI/HUMINT unit.  Within six months they must attend MAGTF CI/HUMINT Course, Marine Corps Intelligence Schools, Dam Neck, Virginia.  Marines must be over 21 years of age prior to course graduation, US Citizens, have a GT score of at least 110 (which may be waived), meet sensitive compartmented information (SCI) eligibility guidelines based on a single scope background investigation/T5 investigation, have 60 months obligated service upon lateral move approval, submit to a counterintelligence scope polygraph examination, possess a valid U.S. Driver's license, complete the HQMC (I) approved pre-resident training prior to attending the MAGTF CI/HUMINT Course, and be worldwide deployable when approved for the lat-move.

Failure to attend or pass MAGTF CI/HUMINT course will result in MOS reclassification or separation from the Marine Corps.  

Marines who complete Marine Corps approved language training and achieve Defense Language Proficiency Test (DLPT) scores of 1+/1+ or higher will be assigned an EMOS 27XX in the appropriate language. Marines assigned an EMOS of 27XX shall maintain a minimum proficiency of 1+/1+ on the DLPT in their assigned 27XX language.


Marines may be assigned to specialized billets requiring advanced training. Requirements and selection for this training will be managed in coordination with subordinate Marine Corps units by HQMC. Training in excess of 120 days will incur time in service obligation. Prior to assignment the Marine must obtain 36 months of obligated service. Marines failing to meet the obligated service requirements will not be assigned to a specialized billet.

Counter intelligence is protecting against terrorism, espionage, and sabotage. Human intelligence is the collection of intelligence from a human being. Other services generally separate the two, but Marines specialize in both. CI/HUMINT Marines can do multiple jobs depending on their billets. They could deploy ahead of Marine Expeditionary Units to gather intelligence. They could be on recruiting duties. They could conduct interrogations. One of the requirements for applicants is willingness to deploy often. CI/HUMINT Marines work to facilitate one major goal - to save lives and protect their fellow Marines through intelligence collection and counterintelligence efforts.  Many Marines join CI/HUMINT to both extend their horizons and to contribute in a more direct way to the mission of the Marine Corps. Many Marines who join feel like they are not providing direct support to the mission. Some feel that they aren’t getting the satisfaction of what they really joined to do, to benefit the whole Marine Corps. By collecting information to protect Marines around them, getting to see the information that they collected used and influencing a community, that’s where Marines in this MOS get that satisfaction. Intelligence drives operations: an infantry commander is not going to send his Marines into a warzone without knowing the risks, an F-18 pilot is not going to fly without knowing if there are surface to air missiles, and an osprey is not going to land without knowing what the landing zone looks like. 0211's are the people on the ground, physically looking at these areas before another Marine goes in. They are on the front line, ahead of time, prepping the battle field.

There are roughly 500 0211's on active duty.  Almost all are evenly spread between the ranks of Sergeant and Gunnery Sergeant.  

To learn more about enlisted career paths, please visit our Enlisted Info section.

To learn more about other MOS's, please visit our Complete MOS List.

If you feel any of this information is inaccurate or incorrect, or have additional resources to inform our audience, please Contact Us.

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