2545

3rd

 * Operation: TORPEDO
 * Spartan-IIIs of Beta Company launch an assault against a Covenant refinery on Pegasi Delta.
 * 298 of the 300 SPARTAN-IIIs are killed during the assault, with Tom and Lucy as the only survivors.

September 16

 * Yasmine Zaman has her fourteenth Birthday. She is taken, along with the other Spartans, to a laboratory to be augmentated.

After 16th

 * At some point during her augmentations, Zaman dies from complications. Her brain is later donated for the creation of the AI known as "Melissa".

Unknown date

 * Richard Lash transfers to the Prowler Corps.