I got a tutorial to work on a map by making it another game mode and use the same file for the main game and the tutorial. I was having a similar problem to this. However it took a while to figure out how to get my triggers to recognize what game mode it was. I could look back at what I did if you want. Also I realize this isn't really what you are asking, but it is a way to make it work.
@ShuckBeam: Go
I got a tutorial to work on a map by making it another game mode and use the same file for the main game and the tutorial. I was having a similar problem to this. However it took a while to figure out how to get my triggers to recognize what game mode it was. I could look back at what I did if you want. Also I realize this isn't really what you are asking, but it is a way to make it work.