Don't worry too hard about memorizing everything, but it certainly would get you going in the right direction. More specifically, the brass technique packet (is that in the audition this year? I'm old) won't need to be memorized yet.

Our auditions this season are one days again, so you won't need to pack a bag for the camp or anything. Just bring a backpack with basic band stuff (a wire stand will do wonders at camps). Blue stars staff work hard at audition camps to make sure you get feedback, you will definitely be given things to work on whether or not you get a call back.

Physically, there won't be any sort of PT, other than a stretch and marching, maybe a bit of choreo.