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MOS COMPARISON

0699 vs 0621

Communications Chief (USMC) vs Transmissions System Operator (USMC)

Intel

Same Corps, same Commandant's Birthday Ball, same dress blues — wildly different reasons to need a drink at all three.

Exit interview, 0699: "How was it?" you've been doing this long enough to know which systems will fail first in cold weather and which ones will surprise you in ways that shouldn't be possible. Exit interview, 0621: "How was it?" pACE planning — Primary, Alternate, Contingency, Emergency — means you always have four ways to communicate and the first three will fail during the exercise that matters. Post-military outlook: 0699 — the post-military career is strong for senior communications Marines who have built a portfolio of technical certifications alongside the operational experience: IT management, government communications program management, and defense contractor positions in communications sustainment are all realistic and well-compensated. 0621 — when they fail for thirty seconds, it is definitely because of you, and everyone will notice. If the military were a university, these two would be in different colleges on different campuses.

0699Marines
Communications Chief
Overall ratingNo reviews yet
Do It Again
Civilian Pay
$99K
0621Marines
Transmissions System Operator
Overall ratingNo reviews yet
Do It Again
Civilian Pay
$99K
Head to Head
0699
0621
Getting In
ASVAB Line Scores
EL 100GT 100
EL 100GT 100
Pay Grade
Enlisted
Enlisted
Training
Training Length
4 wk
14 wk
Pipeline Type
Recruit Training + MCT + Communications MOS School
Training Location
Advanced Communications Course, MCCES, Twentynine Palms, CA (career-level MOS)
MCCES, Twentynine Palms, CA
Day-to-Day
Career Field
Communications
Communications
After You Get Out
Civilian Median Pay
$99K
$99K
Top Civilian Career
Management Analysts
Communications Equipment Operators
DoD 4-Year Investment
$316K

After the Uniform

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

0699Communications Chief
Civilian Median Pay
$99K/yr
What It Becomes on the Outside
Management AnalystsRelated
Job market: Faster than average (11%)
$99K
Training and Development SpecialistsRelated
Job market: Faster than average (8%)
$63K
LogisticiansStretch
Job market: Faster than average (18%)
$79K
0621Transmissions System Operator
Civilian Median Pay
$99K/yr
What It Becomes on the Outside
Communications Equipment OperatorsStrong
Management AnalystsRelated
Job market: Faster than average (11%)
$99K
Training and Development SpecialistsRelated
Job market: Faster than average (8%)
$63K
LogisticiansStretch
Job market: Faster than average (18%)
$79K

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.

0699Communications Chief
What the Recruiter Says

You've built a career in Marine Corps communications and now you run the entire communications operation for a command — managing systems, personnel, planning, and the endless challenge of keeping Marines connected in environments where communications are never reliable enough. The communications officer depends on you. The commander depends on you. And when something doesn't work, everyone's looking at you.

What It's Actually Like

You are the person who gets called at 0200 when communications go down, and it is always your fault until you prove otherwise. You've been doing this long enough to know which systems will fail first in cold weather and which ones will surprise you in ways that shouldn't be possible. Managing communications Marines is a specific leadership challenge — the community ranges from highly technical experts to people who couldn't pass a CCNA if they had the book in front of them. The post-military career is strong for senior communications Marines who have built a portfolio of technical certifications alongside the operational experience: IT management, government communications program management, and defense contractor positions in communications sustainment are all realistic and well-compensated.

0621Transmissions System Operator
What the Recruiter Says

Operate sophisticated radio communication systems that keep Marine units connected across the battlefield. As the commander's link to the outside world, you'll master SATCOM, HF, and digital communication platforms while developing technical expertise that transitions directly to civilian telecom careers.

What It's Actually Like

You are the radio. Not metaphorically. You are the radio, the antenna, the crypto fill device, the battery resupply, the frequency management plan, and the person who gets yelled at when comms go down for reasons entirely outside your control including terrain, weather, atmospheric conditions, and whatever quirks the current generation of radios decides to throw at you that day. PACE planning — Primary, Alternate, Contingency, Emergency — means you always have four ways to communicate and the first three will fail during the exercise that matters. You will carry a radio that weighs the same as a small child up every hill, in every climate. You will spend more time than seems reasonable loading encryption keys and verifying authentication tables. When communications work perfectly in a complex environment, it is because of you, and no one will notice. When they fail for thirty seconds, it is definitely because of you, and everyone will notice.

Recent Reviews

0699
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0621
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