I trust you know the basics; five stations, one target at a time in rotation, change stations when everybody has shot five
Shells: standard load 1 or 1 1/8 oz of no 8.
No 9, 8 1/2, or no 7 1/2 are ok but nothing larger.
Modified or full choke.
Cold range, do not load until it is your turn. One at a time, I doubt they will start you out on doubles. Gun empty and action open between shots ESPECIALLY have gun empty and open when changing stations. DOUBLE ESPECIALLY have gun empty and open when moving behind other shooters from station 5 to station 1.