It just so happens I still have the 2 page basic synopsis and thoughts I had for a rough campaign outline. Sadly, the game didn't go very far and the 2 PCs were entirely too powerful, and trying to run a game at 9am on a weekday when I was maybe getting 2-3 hours of sleep beforehand just wasn't happening.
So here is some scans of the document. For fun, or perhaps to inspire some cool zombie campaign ideas for yourself:
I would probably do things a lot different these days, and would probably have corporate oppression rather than governmental. (Mainly since I don't listen to right or left wing crazies and pay attention to the real world as best I can. Which might explain why I am on antidepressants these days, but anyhow.)
It surprised me that I had a jetski scenario in mind for a zombie game when a rather popular horror zombie game used such a scene (but in a totally different part of their story) a couple years later.