They were attracted to the noise and flickering light (at night). That trope goes back to Romero's Land of the Dead.
I'm still skeptical but at least they had the sense to speed the pace up (for now) and actually have them be true to the comic and fight and defeat the super herd.
I'm still skeptical but at least they had the sense to speed the pace up (for now) and actually have them be true to the comic and fight and defeat the super herd.