I think that the fact that most melee weapons that are ineffective against zombies can knock you out in one hit doesn't make sense.

I was wearing a gas mask and a ballistic helmet and this guy came up to me and he hit me in the head while directly looking at me. I have a similar gas mask (or I think it's similar) in my home and its made out of pretty hard material. And since the ballistics helmet can protect you from a 5.56 round which has a high amount of hydraulic shock I don't believe that person would've been able to knock me out. So why did I get knocked out?

I think they should add a protection multiplier to helmets and such. Or maybe they would add a damage multiplier when you hit a person at the back of their head. That would ease things up a bit. But despite all these small bugs we find, I am very very pleased the way the game is going :)

I think it makes sense since your character isn't exactly someone condition to be resistant to long runs with gear. You're supposed to be a casual survivor. But then again it is true that you drink too much..

For me its like this: Running around with M4, a zombie spots me and runs towards me, 1 is an axe 2 is my m4, when I press 1 to switch to my axe it doesn't respond, then I double tap 1 and it holsters my m4 but my axe isn't on my hands, I double tap 1 again and then I equip my axe. I think it was supposed to work like this: I tap one, the game holsters my m4 and draws my axe out. No double taps.