When we were young, we always dreamed about a FPS with an exact replica of our school to play it and kill zombies and stuff.
But shooting in a school in a video game... I guess that would be frowned upon.
Holy nut I had same thing too!
I also imagined about not only school but my living city, because I know where the police station, minimarket for can food, and place to settle. Zombie only thought, no witch, smoker, or nemesis
Wtf... I'm currently working on such a project :O
EDIT: That post is a bit old. But I just HAD to say that