Nadia is a Death Seeker.Somehow, she feels sorry for infecting Hayden, so she orchestrated of fighting him as Nemesis in order to get herself killed.
Hayden's actions gave birth to the Warframe.Each of the Warframe's powers the Tenno uses are based on Hayden's own set. To compliment, Hayden's suit has been used as a design for the Excalibur model and the Glaive is part of the Tenno's armaments. If it says Dating back to the time of the first Tenno,[...] in the in-game description, it would prove that not only the Glaive is a ancestral weapon of the Tenno, but Hayden's actions had a hand in their birth. Thus making darkSector a prequel to Warframe.
- Mezner goves a speech about the nature of the Lotus
- The Stalker in Dark Sector may also have some relation to the one in Warframe
- The Infested of Warframe frequently talk about how they are of the same flesh as the Tenno, a theme carried from Dark Sector
- It is easy to see how both the Grineer Empire and the Corpus could have spawned from the USA