Its a pretty good game, but personally i advice you to add some better zombie models and better player model and just work on such things make it more interesting ok! Like Parkour and stuff, I personally am making a game too with Parkour and cars and AI which can see you Stealth! So its all cool :D
I really like this game and when ever I play games specially made with unity 3d then I always want to make my own game and...
I just made my own multiplayer shooting game! :)
I will be uploading it, its awesome well not too many features
but still you can drive cars, pickup weapons, enemies roaming
around in the game and stuff like that! :)
STILL... You game is really nice!
 "Zombie Multiplayer shooter"){kind=icon}
 "Alter Cube"){kind=icon}
 "Rush Team Free FPS Multiplayers"){kind=icon}