Nano-Cell
The Nano-Cell is part of the technology created by Ultor Scientist Dr Axel Capek known as nano-technology. The technology was discovered by the EDF after liberating the Martian people from the Ultor Corporation, after which they themselves had scientist explore what it can do.
The technology, at some point made its way to Earth, and in its timeline had been stolen, stolen and stolen again, eventually ending up in the hands of the group known as kN.A.N.O. From here, Chancellor of the Commonwealth, Victor Sopot, ordered his elite squad to steal the technology for him, which the resulting first mission of the game has the player as Alias complete.
At the end of Red Faction II, Tangier is the last person to be seen holding the Nano-Cell, as she jumps out of the top of Sopots Statue after a brief confrontation with Molov. It is unknown what specifically happened to the Nano-Cell itself.