01 / Occupational profile
Your 18E occupational profile
Full combat load and austere infiltration
Common occupational factor
As a full ODA team member, communications sergeants carry weapons, radios, and mission equipment through the same infiltration methods and terrain as the rest of the team, in addition to specialized communications gear.
Weapons and mission-related noise
Common occupational factor
Full participation in direct-action and training missions exposes communications sergeants to the same weapons and blast noise as the rest of the detachment.
Unconventional warfare and advisory deployments
Location-dependent
ODAs deploy to a range of environments for unconventional warfare, foreign internal defense, and direct-action missions, often in remote or austere locations with limited support.
Combat and advisory mission stress
Assignment-dependent
ODAs can be exposed to direct combat, advisory-mission risk, and isolated operations with limited outside support.
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.
18Es employ ODA communications equipment — HF, VHF, and UHF/SHF radio systems — to transmit and receive voice, continuous-wave, and burst radio traffic, and train partner forces in similar systems. They advise the detachment commander on communications architecture and security, prepare communications plans and signal operating instructions, and manage cryptographic material and key handling. Because Special Forces teams are small, the communications sergeant also trains and deploys as a full team member: infiltrating by air, land, or sea, patrolling in austere terrain, and participating in combined, coalition, and partner-force operations across conventional and unconventional missions.
Communications equipment and ODA mission sets evolved substantially across eras — from HF/VHF voice and CW radios to current satellite and networked systems — but the core function of a detachment's sole communications specialist, and full participation in team patrols and infiltration, has stayed consistent.
Duties that may vary by assignment
- Installing, operating, and maintaining HF, VHF, and SATCOM radio systems
- Training partner and allied forces on communications equipment
- Managing cryptographic material and secure key handling
- Preparing communications plans and signal operating instructions
- Full participation in ODA patrols, infiltration, and direct-action missions
- Deployed unconventional warfare, foreign internal defense, and advisory operations
- Field-expedient antenna building and equipment repair without dedicated support
Private, on this page only
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
Army · 18E Special Forces Communications Sergeant
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
Already have a VA decision?
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.
Full combat load and austere infiltration
Records that may corroborate it
- · Evaluations describing ODA assignment and deployment history
- · Special operations qualification and deployment orders
- · Sick call and physical therapy entries during the assignment
Limit: Team participation alone does not establish that a specific joint or the spine was injured in service; a current diagnosis and medical opinion are still required.
Weapons and mission-related noise
Records that may corroborate it
- · Hearing-conservation audiograms (DD 2215/2216) and DOEHRS-HC records
- · Range qualification and training records
- · Unit deployment and mission records
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.
Unconventional warfare and advisory deployments
Records that may corroborate it
- · Deployment orders and country clearance records
- · Unit command chronologies, where releasable
- · ILER entry reflecting deployment location, where applicable
Limit: Deployment alone does not establish any specific exposure or injury; location, era, duties, a current diagnosis, and a medical opinion all still matter.
Combat and advisory mission stress
Records that may corroborate it
- · Award citations referencing combat or advisory actions
- · Statements from team members who served on the same ODA
- · Unit command chronologies, where releasable
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.
Spine / joints +
Back, knee, and shoulder conditions
Why the occupation may matter: Full team participation in infiltration and patrolling with combat loads is part of the 18E role.
Records and clinical evidence: Current diagnosis, duty and deployment records, and a medical opinion.
Occupational history alone does not establish this diagnosis or its medical relationship to service.
Hearing +
Tinnitus and hearing loss
Why the occupation may matter: Weapons and mission-related noise are part of full ODA team participation.
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.
Mental health +
PTSD from combat or advisory deployments
Why the occupation may matter: ODAs can be exposed to direct combat and high-risk advisory operations.
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 18E 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.
Deployment records limited by classification
Special Forces deployment and mission records are sometimes harder to obtain in full detail; unit orders and teammate statements may help fill documentation gaps.
Stressor not independently verified
Advisory or unconventional-warfare events may not appear in conventional records; statements from ODA members and award citations may help corroborate them.
Joint pain attributed only to training, not deployment
Examiners sometimes focus on garrison training records and miss the cumulative load from deployed infiltration and patrolling.
Oakridge Claims / Appeals Focused
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The important question is what VA accepted, what it rejected, and why. A decision review considers the decision, examinations, and the complete record — including private and VA records that may need development. Oakridge is appeals-focused — core work is post-decision, but initial and new claims are accepted on a case-by-case basis (no fee for pre-decision work).
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18E questions
Does my 18E MOS prove I deployed to combat?
No. It shows the specialty and team role; where and when you deployed depended on your detachment's assignments. Orders, qualification records, and statements from teammates may help document the specifics.
My deployment records are incomplete or classified. What can help?
Statements from fellow ODA members, award citations, and any releasable unit orders are the usual starting points when individual records are limited.
Does being an 18E mean I only did communications work?
No. Communications sergeants are full ODA team members who also patrol, train partner forces, and participate in direct-action and advisory missions alongside their specialty duties.
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.