@Mave0708
We're talking about installing cIOS249[56]-v20.wad, modifing it with WAD tools and a hex editor, and installing it in the place of IOS56. I have already tried it as IOS249.
Sorry, I meant to say:
"I have cIOS249[56]-v20.wad, but I have no idea how to edit/modify it to change it to...