Continuity mistake: As Klinger and Margaret are talking about the date, he takes a sip of his drink and goes to put his hand down. After the angle changes and he goes to say his line, he repeats putting the glass down.
Continuity mistake: Margaret comes in to the Officer's Club, and tells Klinger that the drinks are on her. He puts down two glasses, and starts to pour. When the camera cuts to a close up, he's just starting to pour into the same glass again.
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.