Very Good!!!
I liked the game. Hell, anything with zombies is good by my book. The only problems I had was the lack of action. Sure you shoot some zombies, but it doesn't give you a sense of terror. If you make a sequal have the player struggle to keep up barricades. Have your team running around inside getting boards an chair to keep the undead out. Also, I don't want to sit and shoot over and over. Variety is the spice of life. If I want to stand in front of the door with I shotgun, let me, If I want to drop molotov cocktails from the roof, let me, if I want to sacrifice one of my teammates to cause a distraction, let me.