G3/5/7 plans and controls all rotations at the JRTC. It develops, coordinates, executes and supervises joint strategic deployment and tactical contingency scenarios that permit the conduct of Combined-Arms, Civil-Military, and Psychological Operations, with Joint and SOF integration, in both low and mid-intensity conflict against a permanent, capabilities based OPFOR. The training scenarios simulate a combat environment for Light Infantry, Airborne, and Air Assault BDE Task Forces, Heavy Company Teams, Special Operations Forces, Echelons Above Division Combat Service Support units, and selected USAF and USMC ground elements, while integrating USAF CAS and Tactical Airlift Support.

G3/5/7 is the single point of contact for conventional and SOF units deploying to the JRTC.

G3/5/7 is organized into two planning and operation sections, one for conventional and one for special operations. Both sections work closely with the JRTC mission support contractor to plan and control conventional and SOF rotations. The conventional section plans and coordinates for the scenario, deployment, and redeployment of a BDE level Task Force and supporting units to the JRTC, manages logistical issues, and ensures compliance IAW FORSCOM REG 350-50-2 (Training at the JRTC). The Special Operations section plans and coordinates SOF unit scenarios and integrates SOF operations into the conventional rotation. It also controls the SOF exercise support group (ESG) that supports SOF out-station operations.

Planning teams plan and coordinate the specific items listed below with rotational units:

Exceptions to troop lists, task organization and equipment authorized by FORSCOM Regulation 350-50-2 (15 June 1998).

Augmentation for OCTs, EMCC, COBs, and ESG as directed by the FORSCOM Regulation.

Pre-positioned fleet and equipment density levels.

Deployment schedules.

Pre D-Day operations in both Fort Polk and Alexandria International Airport.

Logistics coordination.

EXROE coordination.

Scenario issues.

D-210 and D-90 Planning Conference/coordination (And D-210 for SOF) for active units.

D-720, D-360, and D-210 Planning Conference/coordination for National Guard units.

G3/5/7 plans and controls the exercise and performs as the C2 (Command and Control) for rotational units. G3/5/7 serves as the Staff for CJTF-21 and the Joint Special Operations Task Force, for Maneuver, Intelligence, Fire Support, Engineer, Aviation, Air Defense, NBC, Combat Service Support, Civil Affairs, Psychological, Signal, Legal, Public Affairs, and SOF Operations. It coordinates, integrates, and synchronizes joint operations with Air Force, Navy, Marine, and Joint Special Operations forces. G3/5/7 synchronizes, directs, and monitors rotational units to ensure their training objectives are met safely in a tactical and realistic combat environment. G3/5/7 develops and adjusts the training scenario in coordination with civilian mission contractors to integrate METL tasks and unit training objectives, maintain scenario fidelity, and achieve training goals while ensuring administrative functions do not affect the tactical scenario, or detract from the combat environment.