Tor Books is re-issuing the reprint of The Fall of Reach in mass-market paperback and calling it the definitive edition. It is due this June. I have created this thread in the desperate hope of Reaching someone at 343 Industries. All listings are from the 2010 print of the book.
Issue #1: Known Covenant Races
Towards the end of page 275 Catherine Halsey starts commenting on the existence of different Covenant species. While the 2010 reprint acknowledges the existence of the Elites, it states that ONI only hypothesizes about the existence of Brutes. Halo Evolutions makes it very clear that humanity knows all to well about the existence of this species. The same matter is true for Prophets, as Halo Legends makes it clear that humanity knows they exist as well (“The Babysitter”).
Issue #2: MJOLNIR Shield Technology
Page 283 cites Dr. Halsey as saying the Mark V armor system uses shielding derived from what the Jackals use. In every game, the Mark V’s shielding more closely resembles Elite shielding.
Issue #3: Artificial Gravity
Also on page 283 is mention that UNSC engineers had recently made advancements in artificial gravity, and that some UNSC ships were already using the technology. In Halo Wars, we clearly see the Spirit of Fire with artificial gravity twenty-two years prior to The Fall of Reach.
Issue #4: Pillar of Autumn Refit Time
On page 271 (August 25th) Cortana states that she will begin the Pillar of Autumn’s refit. Two days later on page 276, she states that the ship is refit. While this seems to be in order with the original print, the 2010 edition adds the aformentioned communications log between Keyes and a Vice Admiral alluding to the refit operation as taking multiple days. Keyes states that the refit is 98% complete with seventy-two hours remaining.
EDIT: I removed the section about making the book fit in with the game. After watching some of the cinematics again, this really isn’t feasible without rewriting the whole last chapter and some stuff before it.