I kinda see a patern here. It's the same thing with Matrix Revolutions. It has no story at all but they didnt need one because all the fans filled in the giant plot holes for them. They type 500 hundred page esays (sic) on forums that explaining eveything apperently.
It's the same thing here. Ion Storm makes a game and all they say is that it's in the future and that there are nanobots. (damn I get tired of that, EVERYTHING that is hard to believe and magical in the future has the word NANO-something. Especially in movies.) The rest is (as you have seen if you had the patience to read the whole forum) explained by the fans.