I'm on my second play through and started to build. I can't find that trade station with the brahmin tub and concrete in a tent kinda thing, I looked everywhere!

I don't know if it's a bug or if needs to be unlocked somehow?

It's under resources misc. The brahmin tub at least...not sure what this concrete tent is about.

Are you looking under resources (food/water/misc) - should be under misc. (yea, also not sure what the concrete tent is all about lol)

Under misc is just the plain Tub. I'm looking for the tented one that has the tub and concrete blocks.

Never seen it.

Is it Magazine unlockable?

You need to complete some quests for Bunker Hill to get friendly with them. Then, they will give you the option of building the trading posts to attract caravans to any settlement you want.

The brahmin trough is under resources in the same section as the scavenger station. The regular tub is under the furniture stuff, I believe miscellaneous. The only tented things I know of are a wall and a roof. What is this concrete tent that you speak of?

Never heard of it. And I've built everything in my 3 playthroughs, so, if you've discovered something that I don't know about, I'd appreciate you letting me know.

"After a questline with http://fallout.wikia.com/wiki/Bunker_Hill one can start to get caravans from there that will make the player character profit. One can find the 'trade caravan post' in resources → miscellaneous."

http://fallout.wikia.com/wiki/Fallout_4_settlements

Ahhhhh ok Bunker Hill I wasn't aware they had given me anything last time through. It was driving me nuts.

Oh! I never realized that! I never really paid much attention to the stores. I'll have to keep that in mind. Thanks so much!