I'm just wondering what exactly Master Chief was doing during the exploits of Noble team in the game Halo Reach. I'm well aware of the Master Chief easter egg in the ending scene aboard the Pillar of Autumn but I'm wondering what he was doing before cryo-sleep on the ship? Was he already in cryo-sleep when the attack started? Why wasn't he fighting and why didn't we get the chance to play as him? I understand there's a novel Halo: Fall of Reach but I haven't read it and I'm not sure if it's considered canonical or not. I always assumed he was not present on Reach and that is why the player assumes the role of Noble 6 but this is not true if he's snoozing away on the Pillar.