So Vault 81...
I think there are two big plotholes that maybe someone can explain to me.
So mole rats existed actually before the bombs fell and the level of "suprise" of the scientists indicates that they where just normal animals everyone knew about.
What an immersion breaker... I would find it more believeable that they got lab rats and mutated them than having the molerats prewar.
And while we are at the secret part of the vault... So noone had the slightest idea that there might be something more in Vault 81? Because elevator doors are build into walls just for decoration? So vault-tec build a freaking secret door in the reactor room and than put an elevator directly at the main entrance?
Yeah, noone will ever wonder what's down there...