Exactly.
Clear behaviour expectations.
Consistent enforcement and sanctions.
Model behaviour: if you even once call another staff member or a senior cadet by their first name rather than rank, you immediately shoot yourself in the foot.
It’s really hard in a CCF unit - you see the same kids a couple of hours later in a completely different context where you might be Mr Smith and they might be Johnny, but at CCF they must understand it’s Flt Lt Smith and Cadet Jones. Most of us get it wrong.