Like half of those mouthbreathers will die in the first five minutes, and half of the remaining will just barely survive, one of you might steal Rin's socks, and somehow Shinji dies accidentally and Bii gets the book, lets summon loli Medusa two times or something, and then some asshole steals a police gun and kills Shirou and completes the mission, teleported away seconds before they get sliced in half by Saber.