This page provides information for Veterans exposed to Agent Orange through military service on C-123 aircraft. The Cfile is the folder that the VA benefits section, the Veterans' Benefits Administration (BVA), keeps on the veteran.Claimants are encouraged to apply online through the eBenefits portal. If you are applying for the first time, complete DD Form 2860. Develop and maintain a CRSC application form. c. Write Letters: Get creative!