No he's right, it's a pretty bad idea. You don't seem to understand the concept of zombies, and how effective weapons are against zombies.
Ok... I know what you mean, but zombies aren't real, so people can have different concepts of them. I prefer the more realistic approach, where they're pretty weak, but dangerous in groups. Not these things who have lost their brains, and have half of their original flesh, yet you have to shoot their head to kill them... I mean, I guess they don't need all their organs but still, as humans, our bodies are weak. Zombies' would be even weaker. Walking Dead is probably the most entertaining zombie story out there, and their zombies are the weak kind.