I think in my area (south of da Yoopers
), Middle Schools often have their own AD. Hoever, I also believe that some districts have the HS or Districtwide AD handle middle school game logisitics.
Probably best to check with your HS assignor to see.
If you are new and anxious to move up the ranks, just remeber the advice of previous posters and to hustle from the opening tap to the final buzzer. Coaches will always like to complain about calls, but some of them will appreciate an official who hustles and conducts him or herself as if they know what they are doing out there.
Good luck this season.