Talk:Story and History/@comment-212.219.117.108-20160105141648/@comment-108.197.86.20-20160629153023

Okay, first of all, the warframes don't do anything by themselves. It's us, the Tenno, that control them. Tenno are the ones with powers; warframes are just conduits for those powers. Tenno can't reliably use their powers without a warframe. Attempting to do so usually resulted in the Tenno's death. That's why the Orokin built the warframes in the first place.

As for Stalker, he's not a Tenno. His codex entry pretty much states that outright. He calls himself a "low Guardian" and refers to the Tenno in the third person, indicating that he's not part of the group. He was probably something akin to a foot soldier or a police officer in the Orokin Empire. I think (and this is pure speculation on my part) that after the Tenno kill the Orokin, he meets up with the remaining Sentients (either he finds them or they capture him), and use him to create their own version of a Tenno - sort of a 'fight fire with fire' concept, since the Tenno were the ones to defeat them.