It doesn't matter. If you fast travel he will travel there with you. So if you want summary it doesn't matter.
The android is Security Chief Harkness. But, you must first find Dr. Pinkerton, who is located in the destroyed bow of Rivet City.
you go around asking people in rivet city
The chief guard in Rivet City, (known as Harkness) can be found usually in the Rivet City Market area of the ship. If you have not entered Rivet City yet you can go to the intercom near the edge and talk to Harkness and he will connect the bridge for you.
Rivet city is located on the bottom right corner of your pip-boy map.It's right there and easy to notice.
The bridge is not gone. I actually made the same mistake myself the first time that I visited Rivet City. There should be a metal pole near the edge that has an intercom on it. Talk to the guy on the other end of the intercom and he will connect the bridge for you.
Personally, i have the 1st Assassin's Creed and what you do is that there are side missions like retrieving flags or you can assassinate guards in the city's that you do your missions in. Some missions are pickpocketing people to get info on something. In another mission you have to kill the leader of this city.
Rivet City (see the link below).
Pinkerton can be found in the broken (separate) section of Rivet City.
ammo and not vary good guns
out front, just below the drawbridge
I think there is one on top of rivet city, the run way
In Fallout 3 to get the wedding in Rivet City is to get ant Pheremons from the Giant Queen Ant, Supposilvely in the Antagonizers lair just north of canturbury commons. Then get the pheremones and give them to that girl that loves Diego. (I can't remember her name).