Yes, zombies are so sensitive and they move like super man. I've found that, for the time being, it's best to just run. They will not overtake you and they won't damage you. Train 50 of them fuckers if you have to (preferably not INTO other players). At the first opportunity, duck into a building. That will give you time to look for some stuff and plot your next move. As for the ladders, I've found that most zombies are unlikely to follow you up (though they can and do once in a while). IMHO it's pointless to stealth this game right now. You are going to be discovered no matter how careful you are. Zombies can see through objects, buildings, etc. and they can see you from a loooooong way away. If I were you, I would play aggressively. Good luck, Dan