Not just barefoot punishment. How to punish depends on the instructor. It is certain to let you walk barefoot, but it is definitely not just barefoot. There will be other things, such as letting you leapfrog twice around the military training ground and squat for ten minutes. Don't underestimate the squat posture. Half an hour is enough to hurt your leg muscles or push-ups. There are too many ways to cheat people in the army. I have experienced three military trainings since I came to the university.