User blog comment:Spawny0908/Rockstar Announces Fan Appreciation Red Dead DLC (and it's FREE!!!)/@comment-82.39.205.139-20110619122921/@comment-3455248-20110619171439

Frankly I've never tried casual mode so I'm not sure where or how it works, but can't you just play in Hardcore Free Roam to keep people from using it? I guess that also keeps you from using Normal mode, if that's your preference, but I'd think it would be preferable for a posse battle to know everyone's on the same setting. And hopefully I'm right in thinking that it doesn't work in other competitive game modes outside of the "Casual" playlists.