I don't think "Walking the Line" means "Vigilante." I figured that if your character is willing to kill people, then they're walking the line. And that if your character isn't a killer, and they're good, then they're basically just, "Hero." So, with so many willing to have their characters kill in the name of "good," it's not that there are so many vigilantes because my character is actually affiliated with the wannabe SHIELD organization in this game. It's just there's a gray area between good and evil and it has a "gradient" called personal perspective.