The Officer in Charge is responsible for all the Marine personnel assigned to the ship/facility. S/he is required to take command of any special ground operations and lease such actions with Ship's security.

S/he also is a department head and a member of the Senior Staff. The Marines could be called the 24th century Commandos.

The DOIC, works like any Asst. Department head, removing some of the work load from the OIC and if the need arises taking on the role of Officer in Charge.

S/he overseas the regular duties of the Marines, from regular drills to equipment training, assignment and supply requests to the Ship's/Facility's Materials Officer.

The Platoon Commander is responsible for all the Marine personnel assigned to his/her platoon. S/he is required to take command of any special ground operations and lease such actions with Ship's/Facility's security.

The Deputy, works like any Asst. Department head, removing some of the work load from the Platoon Commander and if the need arises taking on the role of Platoon Commander.

S/he overseas the regular duties of the Marines, from regular drills to equipment training, assignment and supply request to the Ship's/Facility's Materials Officer.

Responsible for the welfare for all Marines NCO's under his/her command in that Squad. Required to lead and command the Squad in and out of Combat. Provide training for the Squad both physically and mentally. Maintain order and discipline. Reports to Platoon Leader. Position requires any Officer rank, or the NCO rate of Sergeant.

Deputy to the Squad leader, is responsible for overseeing the implementing of orders from the Squad Leader. May be held by any Marine NCO rate.

The First Sergeant is the highest ranked Enlisted marine. S/He is in charge of all of the marine enlisted affairs in the detachment. The First Sergeant can act as a Platoon, Company, or Detachment Commander as needed. The First Sergeant reports to the Marine OIC.

Sometimes referred to as the grunt. The backbone of the Marines, the field troops. Required to follow orders, and think on his/her feet if needed. Answers to the Deputy Squad Leader.