[2023] Why don't ferals make footstep noises?

Originally posted by Freak: how would zombies have the brain to try to run silently? they don't even have the brain to find the door to a bunker with a tunnel.

Instinct. Even dumb AF animals have the brain to run silently.

By contrast, navigating a complex manmade structure isn't a natural instinct; Nor is putting several unrelated locations together like +=OMG ITS A BUNKER I BETTER BREAK IN THE DOOR; That equation requires deduction and a leap in logic to conclude that that bunker door specifically is related to the reasons that lured the zombie over.