What Happened to Cortana Between Halo 5 and Infinite?
Now when it comes to Cortana in Halo Infinite, there is a bit of ambiguity around the character's fate. So far, we know about the fact that the Weapon's motive was to delete Cortana and herself after infiltrating Zeta Halo's systems. This pretty much gave away the fact that Cortana will be dead in Halo Infinite.