C&C: Reign of Steel is a re-envisioning of the Tiberian series, so it is completely separate from the original universe. However, some parts are still similar to the original - the appearance of GDI and Nod for example. Because I am not sticking with the original universe I can make major changes to the appearance and feeling of the game.
Nod Sidewinder have ability to spread Liquid Tiberium on Ground and do damage to every unit in area.
O_O'
O_O"!
Immmmmm-pressive!