I am looking to have a sudden death round at the end of a map instead of it ending and being a stalemate, like hydro..

Does anyone have any ideas, or have you seen a tutorial anywhere that explains how to do this?

I have tried to use the gameroundwin entity with the "Team" field set to "None (Sudden Death)", but that must not be the correct way because it still calls the match a stalemate.

Any help at all would be greatly appreciated. I don't mean to sound like a dick by saying this, but don't respond to this unless you know what you are talking about and can help or if you have a link to a tutorial. Thanks