Support units for OD-A, OD-D and OD-E Operators. Soldiers in these units are not required to pass the Operator Course, but to achieve sufficient security clearance to work with their assigned units. Medical and logistics units are part of OD-B, while administrative and transport units are a part of OD-C. They are a part of whatever SOG unit they support, and do not have a home unit, unlike the other operational detachments.