Red would have to add parakeet to the animals to take down to the mines with you. 

There has been some talk about adding structurally integrity to the game/buildings so you would have to build them according to the real world but if you looked at different server a lot of people would be greatly annoyed if this happened and their building came crashing down. 


That is what you would need to make mines collapse, also if you were to tunnel to Hell you would have to take breaks to adjust to the pressure like in the real world, and add shoring to the sides.
The main thing to remember we "play" this game to escape the real world and to have fun.
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What I am waiting for is when you can make Beer then I will invite everyone over for a Beer fest and have fun!!! 

On the Zombies part come to my 7 days to Die server and play. I have my zombies toned down because my gaming motto is "I Play games for fun!!!"