A lot of comments, but I will try and respond to all.
As far as playing a long OHS round at the school goes, I'm all for it but I agree with CA99 that a 1 hour time limit would be better, two hours seams like a bit much. We could say though that at the 1 hour time limit, if players are still having fun, we could go into a "second half," but I think having a break in the middle would be good. I thought the school (especially at night) worked better with traditional rounds, but if people want to play CTF or another type of game, I'd still be up for it (we should have more people this year, which should help CTF be more fun). I'd love to try zombies at the school as well, it would be a great place for it. Refilling should be OK if we all bring water bottles and multiple guns.
For sleeping arrangements, I really hope no one has to camp in the backyard, like I've said though, I plan to park my Grandpa's RV in the driveway, so we should have room for a few more people then we did last year. My mom and sister will also be out of town, if need be I could sleep in my parents room and someone else could have my bed. Only thing with the RV is that people would have to go in the house to use the bathroom, the RV has a bathroom (and even a shower!) but there would be no where to dump the wast water.
We have now reserved the island, the island day will be Saturday with Westmoreland park and any other locations being Sunday. Which days would we like to have night wars? We can do them all three nights if people want, but it really depends when people arrive on Friday and how tired they are after lots of battling Saturday and Sunday.
"If you are wet at the end of a water war, you are doing it wrong"
Van: "What happened?" SEAL: "Scott Happened"