i think it's pretty good. He got everythin right, at least.
Motorbikes will be usefull bro. Try getting through a pileup in a car. Its not gonna work. Yeah, there are a few safety problems with it, but it is useful. And he didnt say anything about the katana being his choice. He said "if you had proper training", then use it. The crowbar, in his eyes, and my eyes, would be the choice of melee weapons. Yeah, I forgot what he said about the 22, so I'm not going to rant about that, soooooooo........................... BYE!!!
Im not going to argue for katana's, crowbars, bats, machetes or whatever. I believe relying on any such weapon is dumb as all hell. I will though argue for one thing. Depending on how rotten a zombie is greatly going to effect how easy, or hard it is to take his head off. In the book Brooks(who is a great FICTION writer) talks about one shot blowing a head off, its a good possibility that if the corpse is rotten enough the head could come right off.
I once ran a call when I was working as a medic, where we found a man who had been dead for a week or two. As the coroners guys were lifting him, the excess weight on his spine coupled with the bloated muscles, and decaying flash his spine broke and the corpse folded like the paper. Trust me decaying flesh can become very soft, especially when not embalmed properly.