What compliment did you think were given to soldiers with excellent performance?

My Dad, who was a retired soldier, asks me, “What compliment did you think were given to soldiers with excellent performance?”

I could remember vividly we have A1, B2, B3, C4, C5, C6, D7, F9 while in school but they only got to have only C4 in the military so I answered and said, “C4”.

What will you do? A Windy Day