WWZ is a great game loads of fun. Real in depth skill tree and the guns are great. Only problem I have is that the campaign is so short and you basically are playing the same levels over and over to level up. Wish the campaign was longer and wasn't 11 levels. If you want a challenge insane mode is where it's at, but I recommend having a full squad (communication in this game is key) with different classes to support each other to make it to the end . I love how each character has a story of who they are, where they're from and where they were when the outbreak happened. Didn't like the PvP so much, more of a PvE kinda guy. But if you like l4d, dead island or any game like that I recommend it highly. I hope they keep updating the game and adding more levels. Give the game 4 stars out of 5