hmmm you should really package the game as an executable rather than ask people to build it... I personally didn't want to open my visual studio where my personal (or work) stuff are used etc, just for this.
If you open the project into Unity and let it build, there should be no need to open VS as well.
This time I finally managed to get batch-mode working. No need to open Unity at all (well, it runs in the background, but it doesn't open the editor window and no interaction is needed).
