I'm really hoping that melee combat bugs will be fixed. I've found myself swinging 20 to 30 times at essentially non-moving, standing targets (ultimately hovering my cursor over all sections of the abdomen and head), both human and zombie, and landing no "hits." I've experienced this, on and off, with virtually all available melee weapons. It's not a constant issue, but it's frequent enough that it makes melee a totally unreliable option). It turns the game into a running and door-closing simulator, until the point when I have and am able to safetly shoot a firearm (which puts them down pretty reliably).