if zombies are attracted to sound it seems like no brainer instead of wasting ammo just make sound grenades which will produce and keep producing sound so you can easily get away

btw. honestly don't understand hype about this tv show, it's pretty much Jericho with bigger budget, worse soundtrack, maybe less soapy but still a lot of soap filler in those 9 episodes or you can just watch any zombie movie like dawn of the dead or I am legend to have same experience without wasting 10 hours, it's not really improving experience over these movies with added runtime

also they do brain surgery in US without shaving your head?