2549


 * Paris IV is attacked and Staff Sergeant Avery Johnson gets an encounter with max dosage of radiation after using a box of Plasma Grenades and becomes diagnosed with Boren's Syndrome, which in the future will save his life from the Flood on Installation 04.
 * The 2549 edition of the Hog is probably released, although it could have been late in 2548.
 * The Covenant recall their standard Type-25 Wraith model to update its design, fitting a Type-52 DESW on a ring mount.

September

 * September 9: Second Battle of Arcadia. The Covenant glasses Arcadia.