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Data Drop is a collection of six classified documents, all of which were recovered from CASTLE Base by Section III of the Office of Naval Intelligence, posted on Halo Waypoint. The first Data Drop is centered around the planet Onyx, while the rest explain how the events of Halo: The Fall of Reach tie in with those seen in Halo: Reach.
List of documents
Data Drop One
The first data drop is nothing more than an image of a blue grid overlaying a starfield with a single section being identified by a large arrow. The image also possesses a white box containing text detailing an object within the indicated section. The text provides details of XF-063, the fourth planet in the Zeta Doradus system.
Data Drop Two
The second data drop is an investigation report on Operation: BRAVADO made by Vice Admiral Hieronymus Stanforth to Admiral Parangosky. The report, reproduced below, provides a brief summary of the battle, including the UNSC efforts of securing the planet from the Covenant.
Data Drop Three
The third Data Drop features Admiral Parangosky's reply to Stanforth's message, where she asks the Vice Admiral to return to Reach immediately and suggests they start considering the initiation of Operation: RED FLAG. Also featured is an ONI behavioral analysis of Dr. Catherine Halsey.
Data Drop Four
In the fourth Data Drop, Vice Admiral Stanforth responds to Parangosky, showing his concern about initiating RED FLAG and sacrificing Reach in the process. A document detailing the specifics of the operation is attached.
Data Drop Five
The fifth Data Drop is a message from Stanforth to Parangosky, where he reluctantly green-lights Operation: RED FLAG. Stanforth explains that while the Covenant invasion of Reach is underway on one side of the planet, a number of UNSC personnel–Captain Keyes and the Pillar of Autumn crew included–are still being kept ignorant of the Covenant's presence. Attached to the transmission are files on the key assets and staff involved in RED FLAG, along with Stanforth's notes on each of them.
Data Drop Six
The sixth Data Drop is a group of transmissions sent by the crew of the Pillar of Autumn, captured by ONI Section 3, in the morning of August 30, 2552. The first message helps explain how the Autumn was able to land in Asźod later in the day, while the second offers an explanation for the replacement of the M90 CAWS with the M45 shotgun in Halo: Combat Evolved Anniversary. The last two are transmissions by suspicious crew members trying to find out what is happening on the planet.