Miss. Code Ann. § 33-7-109: Miss. Code Ann. § 33-7-109

Officers of all grades will be assigned to units or arms of the service and will be transferred from one unit or arm of the service to another by order of the commander in chief as the interest of the service may require; and all appointments will be by commission or warrant in the Mississippi National Guard, and not in any particular unit, and all commissions and warrants now in effect will be considered as such.