(http://i279.photobucket.com/albums/kk137/HaibaneR/Rockford-HS-Schematic.jpg)<br/><br/>This is very simplified and not to scale and leaves out lots of detail. I should think there are several staircases, one at the main entrance probably, one near the cross-roads corridor and possibly another at each end of the 'classroom' wing.<br/><br/>X is where Su and her friends are having crawled under the stage and come out via the old staff lounge.<br/><br/>Z shows Zombies hammering the main door down and entering.<br/><br/>Upper floors with many more classrooms not show.<br/><br/>Zombies and escaping students possibly already mixed up just east of the main entrance.<br/><br/>EDIT: Haha, duh, I'm stupid. In my post several instances of north and south, east and west were reversed so no wonder you couldn't work out the plan. I've now fixed the post though you don't need to read through it all again, the plan above should make it all clear.