I can't remember the name of the campaign. It was years ago now, but if I recall the unique thing about the campaign was it started the survivors off in different areas, instead of all together like seen in every other campaign.
My thoughts are would this be possible on the stock maps? Moreover possible without breaking flow or panic events? If I remember, the campaign start was designed in such a way that the survivors simply started off in different floors and rooms of a big building. Which is probably how it was managed without breaking map flow and whatnot.
I wonder if such an idea could work on the stock maps?