(This article contains spoilers for Zack Snyder’s “Army of the Dead” on Netflix, and for the episode of “Fear the Walking Dead” that aired April 11)There are a lot of things I expected from “Army of the Dead,” Zack Snyder’s new zombie flick that hit Netflix this week, but Garret Dillahunt’s turn as an absolute turd of a human being wasn’t one of them.This being a zombie movie — and one about a ragtag team trying to pull a heist — there is of course a little bit of “the real monsters are people”