I would change to nicer guards and longer outside time.
Explanation:
I would do this because having nicer guards could create a better atmosphere, and though they would still need to be strict and controlling, the guards could have better manners. Being outside is known to help the mind so having longer outside times could help the inmates minds and help them lower their violent tendencies.
I’d say the instructor should be able to tell you the right commands or you can ask someone who knows about the commands that can get you the right commands. if anything you can just make up commands on the spot if you never find out.