- MLG Cheehwawa
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- Fabled Mythic Member
The Battle of Reach occured about 20 days before Halo 1. The PoA fled midway through the battle, to Halo (Cortana got the coordinates from a Forerunner crystal recovered on Cote d'Azure before it was glassed) and arrived at Halo. They believed that the Covenant overtook them, but in Halo: The Flood, we learn that the Covenant which were already at Halo were not a part of Thel 'Vadamee's fleet, they believed that the PoA had been following them, and then the Reach fleet would have arrived after the PoA. The fleet which was scouting was ordered by their Prophet not to fire on the Autumn, while Thel's did the plasma bombardment we see in the game.