MEDICAL SERVICES CORPS EMBLEM MSC navy gifts US Marine Force Reconnaissance units such as civil SAR US Marine Force Reconnaissance units are tasked a wide variety of "direct action" missions which provide a Marine Amphibious Ready Group with a limited special operations capability A Master Diver has the most experience and knowledge on all aspects of diving and underwater salvage The Medical Service Corps also functions as a transitional branch The Medical Service Corps (MSC) is comprised of a wide diversity of health care administrative and scientific specialties ranging from the management and support of the Army’s health services system to direct patient care