I completely disagree. Did you ever think that sometimes people will just kill for fun? That they're just psychopaths? Some men just want to watch the world burn. It doesn't break realism at all. Sure, it might ruin your fun, but it's part of the experience. Even if a bandit is using a sniper rifle, that doesn't mean he hasn't had close encounters with the Zeds. It's much safer for him to pick off players and take their supplies when he needs them instead of going into a dangerous area where he could be jumped by other players or zeds. In a post apocalyptic world, there is no law, no rules, and no punishment for those who do things that society once deemed wrong. Sooooo pretty much what I'm saying is... DEAL WITH IT.