I already knew what I was willing to do to save my family and cover for the Underground. To make sure everyone could escape I would have taken lives. Even those of victims who didn't do this willingly. Lauren isn't the only one torn up about the Hounds that were vaporized. Nothing was left of them.
It was tragic watching their expressionless faces. I can picture the injections and the commands nothing else. They were empty shells that would've killed and hunted the people that I love and people who sheltered us.
I know what I would do to save my family. Take lives human or mutant.