well i am doing "for the republic 2" and i went to the brotherhood and they jumped me stripped me down and took me inside, they gave me a quest to run off a ranger in the area, i tried it and failed the quest, now the brotherhood has closed up shop and i cant get back in without 100 lockpicking, any advice or ways around this?

Find Veronica; http://www.youtube.com/watch?v=nzj3uZlcMAU Bring her back there and she can probably get you in.

tried that, she just stands there, the intercom doesnt work anymore either, it is quiet like the others in the other bunkers, she just stands around like a dummy while i use the intercom and get nothing

You might be screwed then, failing the quest might have scared them off.

Best advice I can give you is to console command into the bunker.

where can i go to find these console commands?

You need to find 3 dead soldiers who have holotapes on them. Go between Scorpion Gulch and Black Mountain and Hidden Valley is a larger crater and there is one there.
Also one in REPCONN Headquarters on second floor
3rd one is Near Nellis Air Force Base, find George he will show you the way.

found 2 of the dead brotherhood guys, one at reppcon, and near scorp gulch, where at nellis isthe third?