Gamida
Hood Ornament
Got an image in my head of a really long stairway going up a mountain and zombies huffing and puffing trying to get up them. Then I got a picture of a big service elevator going up filled with zombies. The lot of them just standing there facing forward not moving....and muzak playing in the background. Then that is when the power gets cut for motion. Now they really do moan as they are stuck in the elevator with the muzak playing forever...maybe some Rick Astley.Unless there is a bug they absolutely should use the stairs. The pathing grid would let them see the stairs and the airblocks they would be moving through by taking the stairs would be much less cost than digging. I think that the new meta in A17 is going to be creating kill corridors and using "paths of least resistance" to control the flow of zombies along a predetermined path designed by the player.
That'll teach them to try and invade my base...