So, who else caught that Lockhart is Nomad's uncle and that's why he has such intense hatred for Prophet/Nanosuits in the first level of the game. The story sure makes a lot more sense after you learn that. I missed it my first play through because I killed the CELL Soldiers that give up this particular bit of story.
They don't say Nomad is Lockhart's nephew, but they do say that his nephew was part of the Nanosuit Program, and that was the reason why Lockhart wants Prophet so badly. Through the process of elimination it is safe to assume that Nomad is the only logical choice to be the nephew they spoke of. Seeing as how Joker was black, Aztec was Hispanic, and Pscyho has a different last name this is the conclusion I came to.
A pretty interesting way to tie in the events of the first game in a subtle way.