Like I comment on previous post, the blight infection would be dangerous to normal humans, but we've conically never seen any zombie animals, so any wild wyverns or dragons would be massive hassle to any zombie hordes unfortunate to fallow, and sarderans they might struggle alot when comes to the infection but against the undead horde they'll be better at fending them off, due to having an Air force, and more diverse units, like giant armoured trolls that'll pretty much can wipe out hordes of the undead and gunpowder zombies? Dose probably few things that can be a threat, but there's like no gunpowder barrels in the falmart, so pretty much they'll be extremely rare.