Deadmoney was good. I think it would of been better if it was a Vault instead of a Casino but it was for New Vegas.

Fallout 4 deserves a Vault DLC similar to Deadmoney's Sierra Madre.

I would really like to see a Vault have as much story and depth as that Casino had.

Vault 0 was only seen in Fallout Tactics and Vault 1 has not been defined at all in lore.

The Pitt was great and it could of been a Vault instead of a steel mill. Old World Blues had little to do with Vault-Tec and could of been themed as such.

There was no swampy Vault in Point Lookout. No Vault in the canyons in Honest Hearts. No Vault in what is left of the Divide in Lonesome Road.

It seems like an overlooked concept to have Vaults in DLCs, therefor I'd like to see a Vault-Tec themed DLC to make up for lost time.

I also want to pick up that Nuka-Cola Squirt Gun that I see the blond girl in the poster holding. I need that. I want it to use all types of Nuka-Cola for ammo.

Please put that in the Vault-Tec DLC.

Didn't make sense to have a vault in the other places. The Pitt likly does have a vault just it had nothing to do with the story, we didn't explore that much of it.

Old world blues was a pre-war research base, it didn't need a vault and would of been worse if it had been being all enclosed.

Point look out doesn't have the population for a vault, they didn't build that many (less than 150 if I remember rightly) so not every little backwater would get one. Honest hearts is simlar accept in a national park. There's not an urban location there so you'd need hours of warning to get people there.

They haven't over looked vaults they just don't fit to the story or locations they set the games in.

While my first thought for DLC was to allow us to be bad/Evil side with the raiders/Slavers instead of the minutemen. The second concept that came to mind was we need to go and find Vault Tec now and make them pay. I really do hope though that the first DLC allows us to have a feeling of being utterly evil/bad/immoral/etc I for one loath being the good guy 100% of the time. And the fact that there is nothing in the terms of this, means when the geck comes out A lot of people including myself are going to go full force in making it so we can have morally questionable actions in game.

So, I agree with your idea for DLC, I just think it should not be the first one

but there was a vault in Deadmoney...

It's not a vault tech vault.