Technological Descriptions:

The Brotherhood of Nod:

Cyborgs:
The use of computer controlled corpses was banned after the betrayal of CABAL. But during the first new skirmishes that the GDI confronted, cyborgs were seen again battling for brotherhood.
The GDI was surprised by this move, cyborgs again at the Brotherhood's disposal. But it didn't took them a lot of time to realize the reason of this; with Earth's population decreasing constantly, the Brotherhood had to find a way to extend the "life" of their soldier.
Cyborgs are now strictly used in wounded troops which their only hope for survival is to become part machine, so they can fight for Unity, Peace and Brotherhood once again. They're no more computer controlled, now the mind is always over the machine.

Tiberian Drugs:
Developed after several years of study in mutants, Nod has developed pain suppressors based on tiberium, allowing them to make the most horrendous medical procedures on battlefield.
How it works, is something that the GDI doesn't know, and also doesn't want to know.
It is speculated by it's scientists that tiberium could simply destroy user's pain receptors, permanently damaging their brain and sensitive abilities.
Secondary effects of the use of these tiberian drugs is that their users have a distorted reality perception.

Escape to the Underground:
In a world too contaminated to live, Nod has constructed completely underground cities, were they believe that they are safe from tiberium harnessing effects.

Side Note:

Cyborg:
Their basic definition is a biological being augmented by mechanical components; the definition of biomechanoid/bioroid a robot made with biological parts; the definition of Hybrot a robot made with mechanical and biological parts, being the mechanical component primarily the computer(s) that controls it. So as you see technically TS is wrong; since clearly the cyborgs are computer controlled, being in fact no real cyborgs, instead being Hybrots or something very similar to that.