Quote Originally Posted by DracoDei View Post
... because you are not officially awesome until you can say that your party lives in S.H.I.E.L.D. headquarters... I like it... I really like it.

I don't care if you don't make it the capstone... there NEEDS to be rules for that... make it an epic feat chain (or, conversely, a single feat acquirable at level 10) or something if you have to, but that is just too cool to not have as an option.
I feel the same, which is why it has to, at least, be the capstone feature. Anything less would be magnitudes overpowered.