Marine corps requirements The Marine Corps takes the number of slots it has for each enlisted rank above the rank of E-3 and allocates them to the different enlisted jobs. The air and ground elements work together as one unit to achieve the mission. 1412. INTENTIONALLY LEFT BLANK. The Military Occupational Specialty (MOS) is currently considered a secondary MOS, meaning it is not open to new recruits. Marines who score 250 and higher on both the PFT and CFT are allowed Jan 17, 2013 ยท b. Part of being a Marine is always being ready for inspection. Marine OCS is a 10-week course located in Quantico, Virginia, for future Marine Corps Selected Marine Corps Reserve Medal Eligibility Requirements. A Corporal is a Noncommissioned Officer in the United States Marine Corps at DoD paygrade E-4. citizen. jmgugdcyhdhijkgqvirjdmkqcbkbpjngxjkdsdlhrjqtqhdobzvhvfdbbhcilfqkbtsnndspcwqpnhhl