I'm not gonna sugar coat it like the rest of these guys, but as a huge horror fan and zombie fan, I can easily say that this is one of the worst zombie movies I have ever seen and definitely the worst movie of this entire year.
The first half hour of the movie actually had plot but after the whole celebration they had, the plot just doesn't even exist anymore.
The movie gives you no implications behind the entire "Alpha" and "Pregnant Zombie" situation, it's just thrown in there and they expect you to understand it.
The movie is also REALLY boring after that first half hour. This makes low budget knockoff movies look like a Hollywood production compared to this, because at least Sharknado actually had a plot you could understand.