Spartans,
Reach is almost completely overrun. The Covenant are relentless in their efforts in destroying this planet. Head to Castle Base in the highlands of the Viery Territory. This is one of our final standing bases in all of Reach. Do anything that lies in your power to drive the Covenant back and make sure they do not overtake this base. Reach will fall, but it is crucial to our survival as a species that the Covenant do not find Earth. If they do gain any information in this base, then Earth's location will be compromised. The Cole Protocol is in effect. Failure is not an option. Good luck, Spartans.
- Colonel Urban Holland