The Vultures. Spoiler alert
So these people come to the stadium, and they declare that they are going to sit there and wait until everyone inside starves, then they will take over. They don't display firearms and just sit around having a tailgate party for days or weeks on end.
The stadium had a large arsenal. 20 people from the stadium positioned on the wall with guns could have wiped them out in five minutes. And nobody inside even considered this???
Then Alicia and Nick insist on going out to save the scumbag leader of the Vultures because "It's the right thing to do."
Holy shit! If there is ever an apocalypse of any kind, my advice is to never hook up with any Liberals, because they will definitely cause your group to be massacred with their idiotic altruism.