Okay, so ever since .55 rolled in, most of us have experienced the new zombie behaviour challenging, many outright calling it to be too much. I myself like the new challenge but would like to suggest some tweaks into this system.
For starters, taking out those zombies currently with my MP5K equipped with a silencer has been a piece of cake. Although, for playing just two hours, running around from one city to another with my friend, I have managed to run out of ammo. To my short experience so far, the melee combat against these zombies is a real pain.
What I would like to see is the ability to block with the melee weapon in your hands. For now, I haven't given it too much thought on various items, but say we use a baseball bat as an example: Could we have some sort of "automatic" blocking when weapon is held in it's position "ready-to-hit" coupled with a line-of-sight check? No, I don't mean that we would have some complex cinematic where the character blocks the attack and does an amazing counterblow.
Something simple; when line-of-sight is towards the zombie and you have melee weapon readied, as the zombie takes a few swings at the player, instead of hitting the player the zombie hits the bat and bat will take damage. Perhaps even could stun the zombie with some two handed, hard melee items.