I don't see how humans can lose to zombies.

[chocoloco]

Intrinsic said:

I have also never understood how it could even be suggested that unaffected humans would be on the losing side in a zombie apocalypse. Especially when dealing with old school zombies that couldn't run. Even with the new ones now that can run, I think any kinda concerted effort by humans with guns would make short work of them.

And has anyone ever wondered why in zombie movies no one seems to have grenades/explosives?

Guns are more readily available to the public while explosives are mostly controlled by the military. 

 

Imagine Europe trying to survive this thing with no guns. They would be dead a lot faster.