Mr. Wolf is supposedly a SGT/E5 after 15 years in the Marine Corps. However, Marines who do not achieve the rank of SSGT/E6 after 12 years of service are discharged from the Marine Corps.
Wolf and his men are referred to as soldiers. Soldier is a term reserved for those who have served in the Army. Wolf and his men are Marines, and are therefore called Marines, not soldiers.
Wolf and his men are supposed to come from a platoon known as the 1013. The Marine Corps refers to platoons either as a number showing them as a part of the company, battalion, regiment and division, such as 1st Platoon, B Company, 3rd Battalion, 12th Regiment, 3rd Marine Division, or companies break up their platoons by function, like Headquarters platoon. Calling a platoon the 1013 would not be done, or would be extremely atypical.
Blood marks/stains on both skin and clothing throughout the season remain bright red instead of eventually turning dark brown and drying.