01 / Occupational profile
Your 0844 occupational profile
Cannon blast noise from nearby firing batteries
Common occupational factor
Fire direction centers operate close to firing batteries during live-fire training and combat missions, exposing fire control Marines to sustained artillery blast noise even without serving as a gun crew member.
Survey equipment carriage and field movement
Common occupational factor
Position survey work involves carrying and setting up survey instruments and communications gear over varied terrain, often repeatedly repositioning as the battery displaces.
Counter-battery fire and combat fire missions
Assignment-dependent
Firing batteries and their fire direction centers can be targeted by counter-battery fire during deployed combat operations.
02 / Your service
What did you actually do?
Your MOS is the starting point. Your actual assignment, era, equipment, location, and duties determine which parts of the occupational history are relevant. Use the Evidence Builder below to select your actual duties and see records that may corroborate them.
0844s prepare fire control and survey equipment for movement and operation, perform detailed survey operations to establish firing data, operate fire direction computer systems, plot survey data on firing charts, and convert target coordinates and observer reports into firing commands. The role also includes preventive maintenance and authorized minor repairs on survey and fire control equipment, and operating field communications equipment linking forward observers to the firing battery. Fire direction centers are positioned near firing batteries during live-fire exercises and combat missions, placing fire control Marines within range of cannon blast and noise even though they do not load or fire the guns themselves.
This specialty was titled "Field Artillery Fire Control Man" before the Marine Corps updated MOS titles in 2016; Marines who served earlier may see that older title on their records. Fire control equipment moved from manual survey and plotting tools to digital fire-control computers over time — the unit and era matter more than the code.
Duties that may vary by assignment
- Position survey operations to establish firing data
- Fire direction computation, including computer and manual methods
- Plotting survey and target data on firing charts
- Converting observer reports into firing commands
- Preparing and maintaining fire control and survey equipment
- Operating field communications equipment linking observers and the battery
- Working within or near the fire direction center during live-fire missions
Related historical codes: Field Artillery Fire Control Man (title used before the Marine Corps' 2016 gender-neutral MOS title updates); 0848 Field Artillery Fire Control Chief, the staff sergeant follow-on designation in the same occupational field
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Military Occupational Evidence Builder
Based on what you actually did in the military, what records might document it? Select only what applied to you. No name, file number, contact details, free text, or upload. Nothing is saved or sent.
Military service
Marine Corps · 0844 Field Artillery Fire Control Marine
For another specialty, open its guide from the MOS library. A job code alone does not establish individual duties or exposure.
Era(s) of service
Deployments
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Your Evidence Builder identifies records that may document your service history. If VA has already decided your claim, the next question is different: what did VA accept, what did VA reject, and why?
Request a free decision review03 / Corroboration
Building your occupational history
Records matter because they can connect a job title to an individual's actual work and circumstances.
Cannon blast noise from nearby firing batteries
Records that may corroborate it
- · Hearing-conservation audiograms (DD 2215/2216) and DOEHRS-HC records
- · Unit training schedules documenting live-fire exercises
- · Evaluations describing fire direction center duties
Limit: Documented noise supports the in-service event only. A current hearing disability under 38 CFR § 3.385 or a tinnitus complaint, and a medical link, are still required.
Survey equipment carriage and field movement
Records that may corroborate it
- · Sick call and physical therapy entries during the assignment
- · Line-of-duty or incident reports for a documented injury
- · Evaluations describing survey or fire direction duties
Limit: Typical fire-control field demands do not by themselves establish that a specific joint was injured in service.
Counter-battery fire and combat fire missions
Records that may corroborate it
- · Unit command chronologies and operational records
- · Award citations and after-action reports
- · Statements from Marines in the same battery
Limit: A documented event is one element. A current diagnosis and a medical opinion linking it are still required.
04 / Evidence standard
What your MOS can — and cannot — establish
May help document
Work performed, circumstances of service, consistency of an alleged exposure, and the nature or duration of duties where supported by individual records.
Does not automatically establish
A diagnosis, medical causation, severity, percentage, presumption, or entitlement to service connection.
05 / Medical evidence
Conditions that may be relevant to the occupational history
This is not a list of conditions to claim. A veteran's actual diagnosis and individual service record determine relevance; occupational evidence is not medical causation.
Hearing +
Tinnitus and hearing loss
Why the occupation may matter: Fire direction centers operate near firing batteries during live-fire missions.
Records and clinical evidence: Audiometry meeting 38 CFR § 3.385, service audiograms, and a medical opinion.
Occupational history alone does not establish this diagnosis or its medical relationship to service.
Spine / joints +
Back and shoulder conditions
Why the occupation may matter: Carrying and setting up survey and communications equipment in the field is a recurring physical demand.
Records and clinical evidence: Current diagnosis, duty records, and a medical opinion.
Occupational history alone does not establish this diagnosis or its medical relationship to service.
Mental health +
PTSD from combat fire missions
Why the occupation may matter: Deployed batteries and fire direction centers can come under counter-battery fire.
Records and clinical evidence: Current diagnosis, corroborated stressor, and a medical opinion.
Occupational history alone does not establish this diagnosis or its medical relationship to service.
06 / Exposure record
ILER and toxic exposure
For applicable exposure-related claims, VA may review the Individual Longitudinal Exposure Record (ILER) and a toxic exposure risk activity (TERA) memorandum along with deployment and occupational records. An ILER entry does not automatically establish exposure or service connection.
07 / After a decision
Why a 0844 claim may still be denied
An exposure finding is not the same as a grant. These are examples from the researched guide, not predictions about a particular case.
VA may accept
A duty or event consistent with the service record
But may deny
A diagnosis, medical relationship, or rating element
Record to examine
Decision findings, service and private treatment records, examination rationale, and medical opinions.
Role confused with gun-line crew duties
0844s work in the fire direction center rather than on the gun line; evaluations describing the specific billet may help clarify the duty history.
Noise exposure assumed to be lower than cannoneers'
Fire direction centers are often positioned close enough to the guns for sustained blast exposure; unit records and training schedules may help document proximity.
Hearing link rejected on separation audiogram
A normal separation audiogram alone does not decide a hearing claim, but examiners often rely on it without addressing the full noise history.
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0844 questions
Is 'Field Artillery Fire Control Man' the same job as 0844?
Yes. That was the MOS title used before the Marine Corps updated enlisted MOS titles for gender-neutral language around 2016. The duties and code are the same.
Does my 0844 MOS prove I was close enough to the guns to be exposed to blast noise?
No. It shows the occupational field. Unit training schedules and evaluations describing your specific duties and positioning are the usual records for that detail.
Did fire control Marines fire the artillery pieces themselves?
No. Fire control Marines compute firing data and operate survey and communications equipment; gun crews (0811 Field Artillery Cannoneers) load and fire the pieces. The two roles have different duty profiles even within the same battery.
Sources and legal references
General education only; not legal or medical advice. Oakridge Claims is a private business, not affiliated with or endorsed by VA. Nothing here establishes a representative-client relationship or guarantees a result. Free accredited VSO help is available.