what is up with the vault tech hq???????????? are you suppose to do some thing special?????????? and what is up with the computer consoles is there different out comes to how you go through the place?

There are no quests affiliated with it, it's just a place in the wastes to scavenge; although, i recall being able to download vault locations there.

Agatha tells you to go there, so there is a quest related to it, but you can skip it if you go directly to the vault, or if you have already discovered the location.

If you gain access to the mainframe (I believe you have to access 3 other terminals first to do it), then it will give you a list of the vaults in the D.C. wasteland and put them on your map.

There's also decent loot there, a bunch of robots and something else. The wiki could tell you more about it in detail.

That part of it is quite buggy, alot of people have reported that they can't get the information they need. There's a final lock that's supposed to open but won't. I couldn't get through when I was there, I had to get that info from the Citadel. Either way though, you do get that information so it's no great loss if that area bugs up on you. And there are some interesting battles to be had with all the robots in the rest of the building.