Dayz in a Nutshell.
1st you spawn on a beach with a five second text where you are.
2nd everywhere structure is surrounded or has atleast zombie
3rd you start off with no weapons
4th if a zombie sees you you will end up getting chased by a zombie that runs faster than you and never gets tired
5th its impossible to find a weapon with being spotted by a zombie
6th once you have a weapon and your friends assembled you can roam the map encountering villages with structures that you can't enter
7th there is no incentive to play, the game just boils down into a deathmatch with zombies
8th you eventually die and spawn on the coast
So what makes WarZ any different? Otherwise I'm going to assume its something that is fun a day then gets boring.