The Master Chief usually has a PHAN striker humping the gear for him, because his index finger has a permanent crook in it from holding his coffee cup.
The two PHCS' I knew did a lot of portrait work, especially for O5's, O6's, and flag officers.
PS - I was attached to a Public Affairs office during 1969-1970. I was the "staff" photographer for a drill team and band at CBC Davisville RI. Quonset Point NAS was adjacent to our base, and I used their lab and office for developing, etc. When they weren't busy, they gave me very good tutorials on lighting, poses, films, etc. It helped me when I started doing portraits when I was transferred to COMCIVLANT in 1970.