This is where I am hung up at. It is complicated and aggravating as hello.

Requesting classified records for those who were on classified missions.
M21-1 Part 3 4.24 (d)
d. Classified Service Records. Even though a disease or injury may have been incurred under
classified or covert circumstances, the records furnished by the Department of Defense will,
except in the most unusual case, provide an adequate basis to determine service connection
without need for reference to any classified material.
(1) If a claimant alleges at any point that disability or death occurred on active duty during
classified or covert operations, request the
veteran's personnel records in addition to medical
records.
(2) If the personnel and medical records considered together do not provide a reasonable basis
for a grant or denial of service connection, refer a copy of the claim form and of any supplemental
statements giving specifics as to the date, place and circumstances of the claimed occurrence to
the Compensation and Pension Service (213B)