Having the same problem, was running by elektro and i hear shooting so i run towards it and see 2 zombies aggro'd and attacking.. they run all the way to the fire station and inside but no sign of a survivor... It's making me think i'm won't see any players because of this file. Anyone else getting this or know a fix? I had upgraded to 1.7.2.5 and now rolled back to .4 but not fixed.