The mission of the MACG is to provide, operate, and maintain the MACCS (Marine Air Command and Control System).

In February 1943 the Commandant of the Marine Corps convened a "Radar Policy Board" headed by LtCol Walter L. J. Bayler.

On 1 April 1944, the group was reassigned to the 9th Marine Aircraft Wing which took over at MCAS Cherry Point after the departure of 3d MAW.

This consolidation joined the organizational colors of Marine Wing Communications Squadron 28 with those of H&HS-28, 3d LAAM Battalion, MASS-1, MACS-5, and MACS-6 under the senior banner of MACG-28.

A Forward Area Air Defense (FAAD) platoon was activated and placed under the administrative and operational control of 3d LAAM Battalion.

The tactical advantages, increased capabilities and innovative employment offered by shoulder-launched missiles led to the creation of a FAAD Battery.

This enhanced capability was formally introduced in October 1983 as the 2d Forward Area Air Defense Battery stood-up and took its place in the organizational structure of MACG-28.

Notably, MACS-2 deployed an Early Warning and Control site to Jordan to assist with data collection on Iraq in the months building to Operation Iraqi Freedom (OIF).

MASS-1, MWCS-28, VMU-2 sent their entire squadrons, while 2nd LAAD deployed a battery, MACS-2 an EW/C detachment, and MTACS-28 critical augments for the 3rd Marine Aircraft Wing (3rd MAW) Tactical Air Command Center (TACC) At the conclusion of major offensive operations, most elements of MACG-28 redeployed home.

The units of MACG-28 maintained air command and control, wing communications, and ISR of the MEF battlespace for the duration of 2005, then the majority redeployed back to the states.