Tommy's Fantasies

Tommy seems to have some sort of "fixture" on NCO's  (Staff, Tech,
Master Sergeant). He either didn't know or has forgotten that to be
promoted to those ranks you have to, among other accomplishments,
taken and passed skill level tests in what ever skill you are assigned
to manage.

Based on Tommy's comments I would guess he had a skill lever rating of
"3" which would indicate that he had finished a technical school and
so was, in civilian term been appointed an "apprentice" skill level.
Next step up would be a "5 level" indicating that one had "journeyman"
skills and the more senior rank would be a "7 level"
skill level, a "master", as high as you can go.
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Cheers,

John B.