Ancient Evil bent on annihilation

On the Halo 4 Xbox page, it says that the Ancient Evil is bent annihilation. Now, I don’t remember the Forerunners being bent on annihilation, that just doesn’t add up. What do you think?

Poor Humanity, stuck in the face of destruction again… most likely again for something they didn’t do directly.

coughprecursorscough

> coughprecursorscough

Nyek…Nyek…Nyek.Annhilation you say?