Can you please tell me what's the deal with the giant, pustule-ridden zombies at the final act of the movie? As in, what they are, how they were created, what makes them different (and stronger) than other zombies, et cetera? Introducing them without any explanation for what they are and where they come from feels like a cheap plot device.
PS: If you're reading this and you aren't LittleLuckyLink, but you still have a theory/headcanon about these zombies (or if there was an explanation and I missed it) I'd appreciate if you message me with the explanation since I'd almost certainly not see it without getting a notification for it.