ASecUnit’s job is to protect its clients from anything that wants to kill or hurt them, and to gently discourage them from killing, maiming, etc., each other. The reason why they were trying to kill, maim, etc., each other wasn’t the SecUnit’s problem, it was for the humans’ supervisor to deal with. (Or to willfully ignore until the whole project devolved into a giant clusterfuck and your SecUnit prayed for the sweet relief of a massive accidental explosive decompression, not that I’m speaking from experience or anything.)