Occasionally when zombies leap, they'll immobilize you and gnaw your noggin' without dealing damage. Zombie regular attacks should also have that ability to immobilize the target.
I don't know if the immobilize on the leap is by random chance or if it's a sweet-spot sort of thing, but whatever applies to leaping should also apply to swipes to make them more lethal :D
I got rekt by zombies in FSC... they leap-grabbed twice in a row and I wasn't facing the zombie that grabbed me either time... so I died. Oh the Valkyrie Helm D:
That was exciting than any other encounter I've had with zombies... soooooo OOO should add them cuz much excitement.
Zombies used to not deal damage on their jump attack and instead the bites would deal damage. They changed it so the leaps dealt damage but the gnawing didn't, however the gnawing isn't really supposed to be that big of a thing.
I believe it's a sweet-spot sorta thing, yeah.
As for zombie swipes, I'm gonna say no to immobilizing, however if we get an AI rehaul for Elite mode at any point, I'd like to see zombie jumps AND the gnawing deal damage, along with the grabbing more common.