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MOS COMPARISON

5711 vs 0111

Chemical, Biological, Radiological, and Nuclear (CBRN) Defense Specialist (USMC) vs Administrative Specialist (USMC)

Intel

Two MOS codes that share nothing except a fierce, eternal argument about who's more "Marine." Spoiler: neither will concede.

If 5711 had a warning label: the M50 replaced the old MCU-2/P years ago — better field of vision, easier to drink water in, still makes you feel like you're breathing through a wet sock. If 0111 had one: nobody respects admin until something they care about requires admin to fix it — then you are briefly the most important person in the building. Neither job comes with a warning label. Both probably should. Both raised their right hand. The trajectory from there diverged immediately and permanently.

5711Marines
Chemical, Biological, Radiological, and Nuclear (CBRN) Defense Specialist
Overall ratingNo reviews yet
Do It Again
Civilian Pay
$81K
0111Marines
Administrative Specialist
Overall ratingNo reviews yet
Do It Again
Civilian Pay
$68K
Head to Head
5711
0111
Getting In
ASVAB Line Scores
GT 100
CL 90
Pay Grade
Enlisted
Enlisted
Training
Training Length
8 wk
8 wk
Pipeline Type
Marine Corps Recruit Training
Marine Corps Recruit Training
Training Location
Fort Leonard Wood, MO
MCB Camp Lejeune, NC
Day-to-Day
Career Field
CBRN
Administration
After You Get Out
Civilian Median Pay
$81K
$68K
Top Civilian Career
Occupational Health and Safety Specialists
Human Resources Specialists

After the Uniform

The part the recruiter skips: what each job actually translates to once you're a civilian — and what it pays.

5711Chemical, Biological, Radiological, and Nuclear (CBRN) Defense Specialist
Civilian Median Pay
$81K/yr
What It Becomes on the Outside
Occupational Health and Safety SpecialistsStrong
Job market: Average (5%)
$81K
Environmental Scientists and SpecialistsRelated
Job market: Faster than average (7%)
$81K
Occupational Health and Safety SpecialistsRelated
Job market: Average (5%)
$81K
0111Administrative Specialist
Civilian Median Pay
$68K/yr
What It Becomes on the Outside
Human Resources SpecialistsStrong
Job market: Average (6%)
$68K
Office ClerksStrong
Word Processors and TypistsStrong
Secretaries and Administrative AssistantsRelated
Job market: Declining (-9%)
$45K

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.

5711Chemical, Biological, Radiological, and Nuclear (CBRN) Defense Specialist
What the Recruiter Says

Protect Marines and their units from chemical, biological, radiological, and nuclear threats. CBRN specialists are the experts who detect, identify, and respond to WMD threats, providing critical force protection capability in an era of proliferating CBRN weapons.

What It's Actually Like

Your primary job in garrison is teaching Marines how to properly don and clear their M50 protective mask in nine seconds while they actively resist learning this because it is uncomfortable and they would rather be literally anywhere else. The M50 replaced the old MCU-2/P years ago — better field of vision, easier to drink water in, still makes you feel like you're breathing through a wet sock. Your primary job in exercises is decontamination operations that involve setting up shower points, processing equipment and personnel through MOPP-degrading procedures, and managing the paperwork trail for a contamination scenario that everyone wants to declare over before it realistically would be. You are the gas chamber guy. Every year, you herd hundreds of Marines through CS gas training and watch them emerge looking like they just lost a custody battle with a pepper spray factory. You will maintain detection equipment that costs more than most Marines' cars and gets used twice a year. The CBRN threat is genuinely real — proliferation trends are not comforting — but the day-to-day in most Marine units involves more classroom instruction, annual training compliance, and PowerPoints about MOPP levels than operational employment. When the mission is real, CBRN Marines are doing work that requires technical precision under conditions of genuine danger. The civilian pathways in hazmat response, industrial safety, emergency management, and the nuclear industry are real and hiring — but you'll spend your enlistment hoping you never have to do the thing you trained for, which is a strange way to build a career.

0111Administrative Specialist
What the Recruiter Says

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.

What It's Actually Like

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.

Recent Reviews

5711
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0111
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