The longer answer
A squad takes the line together and works through the 25-target round in lockstep. The shooter on P1 calls first, then P2, then P3, P4, P5, and back to P1 — five rotations through the line for five shots per post. After the fifth shot, everyone slides one post to the right (P5 walks behind the line to P1), and the next round of five begins.
A puller and scorer stand behind the squad, running the trap and marking each bird dead or lost as the line works. The rhythm is the part newcomers remember longest — five sharp calls of "pull," five reports, a quiet shuffle along the walkway, and the count begins again. A good squad is unhurried but never slow.