Prototype 2s hypocritical protagonist almost gets in the way of our bloody, murderous fun

Though Prototype 2 explains why its main character gains the ability to shoot tendrils from his arms, it never touches on why the virus that gives him super powers also turns him into an unrelatable hypocrite, while removing all semblance of morality. All of it. Just wrings it on out. Every drop. It made more sense in the original game. Beyond being the scapegoat for a massive chemical weapon cover