I'll be a 100% with you this is not Halo, if you wanted an authentic story based on the ga.e that's not happening spolie4s ahead Cortana is an ai still but this time developed from a clone of the doctor, and apparently chief has her forced into his head to control him rather then what we all know happened in the game Halo Reach. Ignore the 5 star rating here, you want to know how bad it is the director and producers are quoted as saying "This is our world not the game, most of us have never even touched the games let alone the books" that should tell you why you should avoid this