Not to mention Spartan IIIs running around and meeting Halsey when she DID NOT know about them.
Quote:Bungue was never too concerned about cannon. At least after 3. They kind of just put out ODST and Reach to be money makers....... personally I'd go with the books.... specially since you see MC ON Autumn in cryo as an easter egg after its leaving Reach's Surface.
As per the book, there were NO prior battles on Reach prior to the PoA jumping out of system. The Fall of Reach took place in less than 24 hours.
Anyway, I treat the game Reach as alternate reality that should be best forgotten.
It's called a retcon, it has happened in Halo many times before. The book "The Fall of Reach" only dedicates a small section of the book to the actual Battle of Reach, and the book is mainly told from the point of view of the Master Chief, John-117. As he never encountered Noble Team or Noble 6, it's no wonder the game tells a different story.
The game never once calles out Noble Team as being Spartan-IIIs. In addition, Halsey had suspicions about other programs similar to her Spartan-II program for years after canceling a second class of S-IIs. While she doesn't actually learn of the S-III program until the events of "First Strike", she had had suspicious for some time.
I would also like to point out that Eric Nylund was on the writing staff for the game, and wrote Halsey's Journal. Bungie had great respect for Nylunds work, and worked like crazy to work around it. The only thing that the game really changes from the book is when the Pillar of Autumn leaves the Reach system.
Again, I point you over here
. This is my version, but plenty of other fans have pieced together the events without fail. Most of Reach was kept in the dark about the Covenant invasion. When the Visegrad Relay was taken out, it cut off the Viery Territory from the rest of Reach, and cut off Reach from the rest of the UNSC.