Command & Conquer 4: Tiberian Twilight

The year is 2062 and humanity is at the brink of extinction. With only six years left until the mysterious crystalline structure Tiberium renders the earth entirely uninhabitable, the two opposing factions -- Global Defense Initiative (GDI) and the Brotherhood of Nod -- inevitably find themselves in desperation for the same cause: to stop Tiberium from extinguishing mankind. The unthinkable becomes reality and Nod's enigmatic leader Kane takes off for GDI headquarters. What is Kane planning in the heart of his enemies' base?