His job was to give Obama legitimacy by filing a law suit what a law-school freshman could have dismissed. He succeeded.
As I recall, the record is that Berg was a strong HRC supporter -- and probably not an Obama agent provacateur.
But I've little doubt that this whole "natural-born citizen" issue was born as a distraction to the birth certificate and Indonesian citizenship/reaffirmation issues that were more likely to bear fruit.
It's a shame that so much time and energy has been absorbed in what was always bound to be a doomed venture.