1. Vault-Tec didn't Nuke the world. China beat them to it.
2. I think so
3. No idea
4. I think people become ghouls from a lot of radiation exposure. The liquid they drink helps them from not going zombie/crazy like.
5. He is unlucky
6. They wanted all the power and wanted to keep Nuclear power... I don't know, the plot is kind of poorly written.
7. Not sure
8. Guess so
Overall I enjoyed the show... but the show had some plot holes. Mainly the last episode kind of ruined the first episode.
Lucy's dad definitely knew who Moldaver was... So why on earth did Lucy's dad let Lucy get married to Moldaver's people in the first episode.