No payoffs
I decided to be fair and watch the movie again. I still don't like it. The biggest issue is the lack of payoff for all the story elements and characters.
A heist? The biggest taker ain't living to enjoy it.
A friend held captive by zombies? Sure you can save her, but who cares of she survived the helicopter crash.
A love interest? Just twist get head around two seconds later.
The movie had too much ambition and too many characters with no payouts and bad writing .