"Dark Sector was originally intended to take place in a science-fiction environment, notably in outer space, with players taking the role of a character that inhabits a sleek mechanical suit with incredible powers.
In 2006, major overhauls to the game were revealed, showing a slightly different looking main character, and a noticeably less sci-fi setting. The developers (according to the November 2006 Game Informer issue) cited a shift in focus by other gaming companies and publishers as the reason for the change to a more modern setting and reducing its sci-fi elements. An interview with GameSpot has also revealed that the change in setting is intended to make the main character stand out more, as well as making the story more relatable which they say is has been written as a superhero origin story." - wikipedia