Ok, I've searched for the answer to this and read the tutorials, but it's still not clear to me.
Do campaigns start with just an intro, then proceed to the 1st mission's intro and mission, etc.?
If so, would I just create an intro with a name just like a mission, but never even touch the "mission" part?
What I'm planning is kind of elaborate, so I don't want to start it if I'm gonna do it wrong and have to redo it.