M. Renta is the highest ranking member in the United States Marine Corps. The General in the United States Marine Corps department, he oversees and manage the entire department. He are responsible for all of the major decisions that can affect the department dramatically. 

L. Biv is the second highest in command in the United States Marine Corps. The Lieutenant job is to assist the General in anything related to the department. His main job is too ensure that orders are executed properly and correctly. He is also tasked with keeping the department in check.

The Major General is the third in line to the General. The Major General's job is to manage all department affairs and oversee officer reports as well as dealing with any internal-affairs within the department. They oversees all Marines within the department.

The Brigadier General is the fourth in command in the United States Marine Corps. The Brigadier General position is manage the lower Marines within the department. They also deals with all officer reports and any internal affairs. 

The Colonel is the fifth in command in the United States Marine Corps. The Colonel position is help the General with all marines. The Colonel also deals with all officer reports and any internal affairs.