Absolutely none of the characters are consistent with the Halo franchise, almost all lore is completely disregarded simply so the show creators can try coming up with their own cheap sci-fi gimmicks, despite everything that already exists within the Halo universe. “Master Chief” spends most of his time on screen within the first three episodes without his helmet on, and a large portion of that time is spent without any armor on at all. If you’re a Halo fan, this show is everything that it should not have been.
If you’re not, it’s generic sci-fi shooter show #5,628.