I would also shoot back, ultimately it's me or them, but how can anyone here, doing something like that for the first time, say that they wouldn't hesitate? I really don't know if that's even possible. Not without hesitation anyway. You're not the Terminator. I doubt you can turn off your compassion just because they're firing at you, especially if you've never done it before!
That article is just sick. I don't understand how someone can hide behind women and children, or make children fight. How the hell can they justify themselves? What can they be thinking? What possible motive could drive them to such acts? Stories like that make me rethink my position against the war.