...all you need to do is use 8 hours for survivors 1 for repair and 3 for weapons. Then on the second day use it all on survivors... wallah raffle ticket ftw!
Lolz... for zombie apocolypse use your pistol and take out as many as you can to hold them off. Switch to your shotgun once in a while if there are 4+ zombies together. Then when they get to your wall dont use the pistol just use the shotgun to clear them out when they start stacking then hold them off with the pistol. I got 2:12 first time doing that. =]