Special Amphibious Reconnaissance Corpsman

A Special Amphibious Reconnaissance Corpsman (SARC) is a United States Navy hospital corpsman special operations capable who provides United States Marine Forces Special Operations Command (MARSOC) and other United States Special Operations Command (USSOCOM) units advanced trauma management associated with airborne (including military freefall parachuting), combatant diving, and heliborne. Traditionally, they are attached to the United States Marine Corps Force Reconnaissance (FORECON) companies to help support the Command Element of the Marine air–ground task force (MAGTF) in special reconnaissance missions.

Source: Wikipedia — Special Amphibious Reconnaissance Corpsman (CC BY-SA 4.0)