!!YMMV in Tiberian Eclipse:

* NightmareFuel: ''Everything'' what the Tiberium did to the world of Equis.
** The Everfree Forest. It got upgraded to a forest made of fleshy, Tiberium-spitting trees, full of hyper-aggressive, mutated wildlife.
** Remember the bright world of Friendship is Magic... Now think about it being overrun with Tiberium and turned into a wasteland hostile to all kind of life.