I just followed Helios' directions to put The Prison map on my GR:IT. This is map is designated as MP. The zip file included a Map/M05_Prison folder. I renamed all of the files and folders to MP07_Prison and all of the appropriate file associations inside the .env's and .mis's. I assumed that all of the .rsb files and MP07_Prison.map file would have to go into the commandmaps folder on GR. So, I transferred and booted up GR. I was able to see the map selection and even choose my team, but it gave me the "something is wrong with your disc please reboot your xbox" message. After dicking around with it and moving the map files around I was still unable to load the map. I then deleted all of the Prison files from the xbox and re-transferred all of the files and reworked the .env's and .mis's. And this time I get that damn message after selecting the map. Holy Damn, I give up.