Phoenix Logs/UNSC Units/Warrant Officer Quinn
From Halopedia, the Halo wiki
lst Squad, lst Platoon, B Company, 9th Shock Troops Battalion.
Major Vaughan's command squad, callsign Sunray 1-1, is the lead element of Boomerang Company, the UNSC's most elite force of Orbital Drop Shock Troopers [though that's what they all say].
Signals Reconnaissance Specialist.
Quinn has been many things in her life, but none have been as meaningful as service in the ranks of the Spirit of Fire's 9th Shock Troops Battalion. A highly trained signals intelligence analyst and electronic warfare operator, Quinn accompanies ODST pre—assault and deep strike post—assault teams on missions that require the application of technical wizardry in addition to raw firepower.
With Professor Anders' departure on the Halo ring it has fallen to Quinn and other UNSC personnel who have demonstrated affinity with—and knowledge of—Forerunner systems to be boots—on—the—ground resources for task force commanders. It's a job she relishes.
Quinn and Major Vaughan have a long history of service together on board the Spirit of Fire. Quinn has no particular love for the ship itself—and despises its recycled air and the peculiar pull of the barracks' artificial gravity—but she cares deeply for the crew and troops aboard it. When Quinn accompanies Vaughan on his Ark expeditions, she serves as the command squad's technician and "Ark door opener," in addition to handling a prototype target designator for the Spirit of Fire's new EMP Ordnance support drop.