Thanks for your replies guys...
dOOmninja--------
As for an answer I have to point out once again that even if one of the HL's was discovered by a rival faction that's half the point... It will encourage working as a team to keep the secret and to finding it.
Also as said before they would not be permanently in the same place to end up like the current HL's. That would make no sense in include something the game has. This is an idea of a constant mission/struggle for control which makes perfect sense in the given environment.
And lastly your ideas on Uber powers and character game transferring have no relevance in this thread, perhaps you should start your own post and get feedback from there...
I can see this not being as much trouble as most think too. We have the HL's already there, and you can also teleport people using a Force Enhancer skill to wherever you are, internal rooms and all. (Not counting the tele bug that is currently happening in International... /bug it people, get it sorted quicker)
Cheers Yondo..., and thanks to DontEatRawHagis, I'm glad you can see the movie in this idea. The whole meeting secretly like in Reloaded, and using them to jack in safely (Given they've not been compromised since your last jack in) like in all the films is what I see improving the team and general game play. I like the underground stuff too... They have hideouts underground, why not a little sewer.
JN.