Colonel (UNSC)
From Halopedia, the Halo wiki
Template:FactOrFiction Template:Rank Infobox Colonel is a commissioned officer rank of the UNSC Marine Corps, equal in rank to Captain in the UNSC Navy.
Sources
In reference to the above image -- Halo: Ghosts of Onyx, page 58; "... pinned with the eagle insigne of a colonel".
