So, I do think it would make more sense for cops to be the defenders in a prison break, but I don't think the execution of it would actually work. I could write out an entire list describing why, but the short version is that it would just feel really clunky and kind of dumb. It would require a major change, and probably a new location for it to be somewhat decent.
With that said, I do think there needs to be an event where cops are the ones defending, not attacking. I have something in mind that I'm going to run by @Paratus eventually, but I think for right now we're just focusing on bugs and performance.