To be honest, I dropped Halo 4 as a game, but I'm still interested in canon, clearly.
So to start out: Exactly when do the spartan ops episodes start? After the events of Halo 4?
So Halsey was also on the Infinity, couldn't she recreate Cortana?
[Edited on 12.23.2012 8:12 PM PST]
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Halsey was [i]brought[/i] onto the Infinity in one of the episodes to study the Forerunner tech. Why would she need to recreate Cortana? It would just be like creating just another AI. It would not be the same as Cortana, since it would not have any of the knowledge the original Cortana had.