Military Occupational Specialty (MOS) Codes: Veterans, Reservists or Guardsmen with experience in the Military Occupational Specialty ( https://www.trs.texas.gov/files/trs-military-crosswalk.xlsx ) along with the minimum qualifications listed above may meet the minimum requirements and are highly encouraged to apply. May research and resolve complaints and problems regarding service and disability requirements, projected benefits, health benefits, refunds, death benefits, purchase of special services, post retirements, district reporting requirements, agency forms, and other issues.