If I start throwing punches to normal zombie it goes down after 5 hits in the face, military ones take a lot more.
Firefighter axe takes them down in one hit, so easy.
But I think that zombies should not walk through a wall, hurt you through a floor or wall, should not glitch half inside the ground when house is closed, because when the house is at a higher level, and you close the door, the zombie walks through the wall in ground level making only top part visible...
But getting hit through floor or ceiling is also something that's need to be fixed....
Fine that they see new, smell me or hear me, but they need to act realistic, so no wall walking and fences, no hits through solid material....