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Deployable Operations Group
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Chronological information



Command information


Unified Earth Government

  • United Nations Space Command



Command Structure

Expeditionary Combat Command

Component units

  • Port Security Garrison (PORTSEC)
  • Maritime Advisory & Security Tactics (MAST)
  • Coastal Security (COSEC)
  • Deployable Assistance & Rescue Teams (DART)
  • Land Ocean & Coastal Operator Teams (LOCO)
Other information


Puddle Pirates, Coastie Group


"Securitas Parit Prospera Exoptamus" (Security Begets Prosperity)


Admiral Trajan Fitzsimmons


  • Insurrection
  • Human-Covenant War
  • Post Covenant War conflicts
"We will be where the people need us most — that's damn near most places, nowadays."
― Rear Admiral Lower Half Trajan Fitzsimmons

The Deployable Operations Group, also known as DOG, is a component of the UNSC Navy Expeditionary Combat Command that specializes in coastal defense for UEG and CAA colonies. Created in 2400, the Deployable Operations Group expanded on the importance of providing coastal security for colonies who were unable to fund and staff their costal defense organization. The Deployable Operations Group is capable of deploying to multiple colonies with a variety of specialists and technicians to assist in an array of missions the UNSC and CMA request assistance in.


The Need for Coastal Security

The Colonial Military Administration and United Nations Space Command ran an annual report to discover that the transportation of illegal arms, substances, and materials was being transported through ports, along coasts, and through boats. UNSC High Command called upon the UNSC Marine Corps and Navy as a means to prevent actions along coastal areas on Colonies. The CAA and CMA worked with local law enforcement to cross-train and execute missions alongside the UNSC units but were met with complaints. Ranging from lack of knowledge on close-to-shore operations to civilian casualties, the CMA demanded a better solution from the UNSC. In 2398, a CMA team toured Earth's Coast Guard facilities and watched capabilities exercises to see what the Earth Coast Guard units demonstrated. Immediately after, the CMA began planning their own style of a Coast Guard branch.

However, UNSC High Command brought themselves into the equation and restricted the idea of having a new branch for the CMA. UEG senators worked with UNSC officials to cut spending in crucial areas to prevent the creation of a branch that would take power away from the High Command. By 2399, the project had been scrapped by the CMA due to the UNSC's political blockade. The Chief of Naval Operations ordered a small cell to create a one-star Admiral sized group to train and equip specialists in the fields of port security, close-to-shore, and rescue divers. With support from UEG senators and budget increases, the cell became a Special Access Program in 2400, known as the Deployable Operations Group. Blacklash was expected from the CMA, and they worked to bar the SAP from operating on colonies until the UNSC worked a deal for the CMA to have deployment priority.

Throughout 2400 to 2412, Orbital Drop Shock Troopers, Navy Divers, Marine Force Recon, and several other experts taught candidates within the Deployable Operations Group. Marine Force Reconnaissance soldiers were known to make up the action arm, colonial police officers, and military personnel assisted with building Port Security. At the same time, rescue swimmers and divers came from all walks of life who wanted to save someone's life. The UNSC recruited civilian VTOL pilots and military warrant officers to bring the experience into the ranks. Trainers to sharpen the new ranks came from Earth's Coast Guard and began cross-training with the Deployable Operations Group. Requests for jet skis, patrol boats, diving equipment, aircraft, and equipment were met by the UNSC Logistical Command; which further made the Deployable Operations Group come to life by 2412.

The CMA began deploying the Deployable Operations Group throughout the Outer and Inner Colonies to test if they were capable units created by the UNSC. Reports came back and proved to be a significant positive trend in captures, precise interdictions, and arrests completed. The growing popularity of the Deployable Operations Group made them favored among the civilians who resided on CAA-administered colonies and drove up recruitment throughout the first half of the century.

Role and Operations

Port Security

To conduct Port Security (PORTSEC) alongside UNSC and CMA personnel. Including Counter-Terrorism, Counter-Insurgency, Port Maritime Interdiction, and so forth.

  • Port Security Advisory and Security Assistance
  • Maritime Vessel Patrols
  • Close-to-Port Threat Neutralization

Deployable Assistance & Rescue Teams

  • To conduct a rescue of civilians and military personnel in maritime seas, gulfs, and waters close to the shore. To work with UNSC Navy and Air Force on rescuing pilots and assist during training exercises over oceans with the UNSC Navy Rescue Teams.

Land Ocean & Coastal Operator Teams

To conduct Special Operation missions alongside UNSC personnel in Costal, Land, and Sea Theaters. Counter-Terrorism, Advanced Interdiction, Vessel Board and Seizure, Counter-Insurgency, Unconventional Warfare, and Direct Action.

Airborne Aircraft Teams

Provide Aviation Support for General and Special Operations Forces. Maritime Interdiction, Advanced Interdiction, Attack, Assault, Reconnaissance, and Rescue.

Operational History

Inner Colonies Compartmented Rotations


Human-Covenant War Conflicts

Post-Covenant War Conflicts


Group Structure

Command Structure

The Command Structure of the Deployable Operations Group has a strong emphasis on working with the elements of the UNSC Navy nearby, along with Expeditionary Combat Command groups deployed alongside a DOG Group. The overall commander of the Deployable Operations Group is a one-star Admiral who heads the entire organization, that commander is supported with a Force Master Chief Petty Officer who serves as the enlisted leader of all enlisted personnel under the Deployable Operations Group.

Captains lead each Group, where there are a total of six active-duty groups under the Deployable Operations Group command. The Captain is supported with a Commander or more who heads the Battalions under each Group, focusing their efforts on the missions, planning, and logistical tasks that are required to keep the Group up and running. Under a Commander are Lieutenant Commanders who head the Companies and handle missions for the teams and what ought to be accomplished based on the Commander's requirements.

Each Team is led by a Lieutenant, who is supported by a Lieutenant, Junior Grade has his Executive Officer. Lieutenants handle the execution of each mission and ensure their teams are properly trained for whatever missions they would be called upon. Lieutenant, Junior Grades spend their time assisting the Lieutenant and leading smaller elements when Teams are needed to split up for a mission. Lieutenant, Junior Grades can serve as Team Commanders depending on the situation but is not often.

Officer Ranks

  • Rear Admiral Lower Half
  • Captains
  • Commander
  • Lieutenant Commander
  • Lieutenant
  • Lieutenant, Junior Grade

Enlisted Ranks

  • Force Master Chief Petty Officer
  • Command Master Chief Petty Officer
  • Master Chief Petty Officer
  • Senior Chief Petty Officer
  • Chief Petty Officer
  • Petty Officer First Class
  • Petty Officer Second Class
  • Petty Officer Third Class
  • Crewman
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