I was not digging the other zombie pics and they were way too strong so here are the updates and again, thx to Nyogtha for the Inspiration. Anyone have an idea for new Zombies to add?

Added two more monsters...

My idea for the dogs is they are elusive because they are brainless and not so attentive anymore. And if you fail the sneak check, they are alerted to you and cause you to be delayed thus triggering the zombie horde to appear at your location.