First off I am going to pick up my copy at the Midnight Launch at GameStop (9 pm? PST), most likely going to try to sleep in line outside the front door holding down 1st in line slot 6+ hours in advance. Drive home (1/2 hour on the road), Start the Install then Bathroom brake wile its loading.
As far as snacks / food goes ill pick it up a stash a day or two in advance so the drinks will have time to chill in the fridge / not have to worry about running out mid-gaming : Sodas (mostly Cherry Pepsi), Rockstar energy drinks ( fruitpunch ), Tigers Milk energy bars, M&Ms, Sun chips (less finger grease than real chips), Gummy Candies, Chicken Pot Pies and Hot Pockets (pizza flavored) for when we start to need real food in our systems…
Game wise I plan on knocking out as much of the story mode as I can from the gate for the first 6-8 hours then pass off the controller to my brother who will most likely do PvP for the next 6-8 hours ( We take turns sleeping / playing so we can both work on one account and get the maximum number of hours in a row without killing ourselfs)