What is SSAZ? (from SCHQ_TACMAN_PDF)

[PINK PANTHER]

I downloaded SCHQ_TACMAN_PDF from "subsim download".

In this PDF page 7 and line 5 , there is a word "SSAZ'.

I stuck here because I didn't know what it meant.

I had googled it ,but there was no answer.

Is that some kind of acronym?

If yes , what is SSAZ's full name?

I had a snapshot in my signature.

Thanks a lot.