I did not use this particular format of communication but of the ones Im familiar with...
If it meant "imminent, specific location" the way you are using it then it would not be tacked at the end after the signature. There is a logic to the way communications are formatted. "Delta"(imminent specific) is one of the most important parts of the message so there might be a number of ways and places that it might be put in here (again, I didnt use whatever this is) but it would be maybe first and last or the first line might read "DELTA_WARNING_UK_" or "WARNING_UK_DELTA", those would be logical to use that way if it meant that. You wouldnt send a message and then on the end, after youve signed it add "Oh ya, BTW, this is immediate and specific".
Sword, do you know what Im saying?
He didn't sign it "Q delta"
He signed it "Q, delta" with a comma.
Would that make a difference in how you see it? I think it makes a slight difference. Q delta would seem to be more of an identifier, while Q, delta would separate the identifier from the delta. Yea?
I’m familiar with communications in which something such as a specific word would be used as a delimiter to alert specific message targets that what is contained between the delimiting words is authentic and official, needing highest priority action. That would explain the comma after Q. I.e. "Delta" both starts and stops the meat of the message in that everything between those two uses of "Delta" is of supreme importance.
It’s also possible that delimiter serves a double purpose in that it is also an address word as well. In this case Delta is both the addressee, for example Delta Force, to whom the instructions and/or warning is sent, and the delimiter as well. Thus only Delta Force would take action on the message. . . Yet Able, Baker, and Charlie Forces would also know what’s going on.
That’s all a stretch, but a possible one.