but you see, that's where your are wrong, World War Z is not World WarZ, while DayZ is the same word, so unless you pronounce DooM, di oo em, instead of doom, there is no reason to call dayz - daisy and no way daisy sounds anything like zombies anyway. It's ok to call it Day Zombies though.
I'm just gonna listen to my JayZed songs now. This is getting ridiculous.