0111 vs 0671
Administrative Specialist (USMC) vs Data Systems Administrator (USMC)
Both went to Parris Island or San Diego. Everything since has been a choose-your-own-adventure book with no good options.
A typical day for a 0111: you are the person everyone comes to when their pay is wrong, their leave was rejected, or their award package disappeared into the administrative void. A typical day for a 0671: now 31s own the network infrastructure (switches, routers, tactical data links) and you own everything else: servers, workstations, Active Directory, Exchange, imaging, patching, backups, virtualization, and whatever enterprise service the Corps decides to bolt on this fiscal year. It gets better. The 0111: nobody respects admin until something they care about requires admin to fix it — then you are briefly the most important person in the building. The 0671: the training pipeline at MCCESS is decent but moves fast — if you don't have some IT aptitude going in, you'll be drinking from a firehose. Same paycheck. Same rank structure. Different universes.
After the Uniform
The part the recruiter skips: what each job actually translates to once you're a civilian — and what it pays.
Salary data from the U.S. Bureau of Labor Statistics Occupational Employment and Wage Statistics program. A guide, not a guarantee.
Recruiter vs. Reality
The pitch versus what people who actually did the job report back.
“Admin Marines keep the entire personnel system running — pay, records, unit diaries, correspondence, everything that makes a Marine Corps unit function as an organization rather than just a group of people with guns. The organizational and records management skills translate directly to office administration, HR, and government service careers, and the hours are significantly more predictable than the infantry.”
You will become intimately familiar with MOL, MCTFS, unit diaries, and the specific formatting requirements of every administrative document the Marine Corps has ever invented. You are the person everyone comes to when their pay is wrong, their leave was rejected, or their award package disappeared into the administrative void. Nobody respects admin until something they care about requires admin to fix it — then you are briefly the most important person in the building. The work is repetitive, detail-intensive, and chronically thankless, but the hours are genuinely better than most MOSs and you will never hump a mortar baseplate up a mountain. The civilian translation is strong for office management, HR assistant, and government administrative positions. If you can navigate the Marine Corps personnel system without losing your mind, corporate HR will feel like a vacation.
“You'll be the systems backbone of the Marine Corps — managing servers, Active Directory, virtualization, and enterprise services that the entire MAGTF depends on. The certs you'll earn (Security+, Server+, eventually MCSA or cloud certs) are the same ones Fortune 500 companies require. Cleared sysadmins with hands-on operational experience start at $80-100K+ on the civilian side, and the demand has not slowed down. This used to be part of 0651 — the split means you specialize deeper in systems instead of trying to be a network admin and a sysadmin at the same time.”
The 0651 split into 0631 and 0671 was overdue — the old MOS was trying to make one Marine a network engineer AND a systems administrator AND a help desk tech. Now 31s own the network infrastructure (switches, routers, tactical data links) and you own everything else: servers, workstations, Active Directory, Exchange, imaging, patching, backups, virtualization, and whatever enterprise service the Corps decides to bolt on this fiscal year. Your daily life is sysadmin work — building out server racks in a server room on garrison, or running a COC's entire IT infrastructure out of a tent in the field with generators and tactical satellite. You will learn more from breaking things and fixing them under pressure than from any course. The training pipeline at MCCESS is decent but moves fast — if you don't have some IT aptitude going in, you'll be drinking from a firehose. Security+ is mandatory for your job (DoD 8570 baseline cert), and your command will usually send you. The civilian translation is strong — every company needs sysadmins, and cleared ones with Secret or TS/SCI are in constant demand. The frustrating part: you're responsible for everything working, but you rarely get credit when it does. When the Colonel's email is down, you are the most important person in the building. When it's working, you're invisible. Welcome to IT.
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