Your post is substantial and very nice, good grammar, lot's of imagery detail. One thing though that you need to know. There are no metal bars, no barred cells. All the cells are single man/woman, plaxy glass cells. (Don't know how to spell plaxy glass) If you need a reference for what his is really like, what I want people to envision, think of the movie Escape Plan. If you've seen it, that'd be perfect for you to grasp this. If you haven't and don't want to, just watch the trailer and it should be enough for you to understand then.
Also, I don't think you need to be so rough with Kat's character, her character wouldn't fight back or provoke that kind of response, it just seems unnecessary. Lastly, for Barry, you don't need to demean his character like that. I did say this was a mature language RP and as a guard, you're inherently a jerk but that seems like a low blow and insensitive.

The exact details of the prison are kept from you, on purpose, but a lot are modeled after that movie because it is supremely secured. If you have any questions SillyGoy, about the layout and guard related knowledge. Ask me or Little_Ninja.