Communication Breakdown - S10-E6
Visible crew/equipment: While Colonel Potter and Margaret are with Charles, a nurse sees them and announces the presence of a newspaper, then when everyone gathers around Charles while he sets the reading rules, there's a man with blondish shoulder length hair and a beard, wearing a blue button down shirt and white pants who's standing in the background, partially hidden by the signpost.
Answer: It is actually Cencompac for Central Command of the Pacific. It is like the headquarters for all military activity in the Pacific Region (Japan, Korea, Okinawa, etc. The newer version of that is United States Pacific Command (USPACOM).
EMTurbo
And the abbreviations were used mainly by the Navy. Especially CENCOMPAC.
Https://en.wikipedia.org/wiki/United_States_Indo-Pacific_Command.