Taking zombies to a new level?
Zombies having babies? Organized thinking? Zombies are gonna become like vampires. The rules will change depending on what show you're watching. I like my zombies mindless and focused on eating human flesh.
But we actually never knew what the original Alpha Zombie was, how he was at Area 51, or if he was actually a zombie. A little knowledge of that would've been nice. Hopefully we'll see another movie (doubtful) and get some explanation.
A good movie......if you like senseless action with a non-meaningful story.