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].
The Mustang.
Born to a family of politicians and corporate executives, Vaughan lived a life of privilege and luxury in the most prestigious of Earth's arcologies. But when a family squabble escalated, a rebellious young Vaughan made the worst and best decision of his life by enlisting in the UNSC Marines.
Rammed through boot camp during the height of the insurrection, Vaughan had no time to regret his decision before shipping off to war against terrorists and separatist movements in the Outer Colonies. His first duty station as a green recruit was the Spirit of Fire, an old ship retasked with transporting UNSC military and police forces to colonies it once established. Few appreciated the irony more than Vaughan, given the role his own family played in exacerbating colonial tensions.
Years later he found himself on the Spirit of Fire again, this time as a commissioned ODST officer on a campaign against the alien Covenant that would take him from half-glassed colonies to ancient Forerunner shield worlds, and beyond. It's been a long road, but Vaughan takes solace in the fact that this is definitely not the course his family had pre—charted for him.
The Spirit of Fire's unusual situation makes Vaughan one of the highest-ranking UNSC officers in the Ark conflict, but he prefers to leave strategy and high—level operational planning to the experts. He's a Helljumper, and his place is in a drop pod plunging feet-first and on fire into the cauldron of battle. In addition to coordinating Boomerang Company's deployments and leading the command squad, Vaughan carries the squad's SPNKr rocket launcher, which he occasionally uses as a blunt teaching instrument to knock sense into younger ODSTs.