Deep within the recordings of the United Nations Space Command, a dormant conflict whispers. A hidden Covenant artifact has been unearthed, revealing clues to a brutal war fought centuries ago – the war of Halo 303. The conflict, shrouded in secrecy, pitted humanity against a formidable foe, one linked to an unknown Covenant faction that thrived

Deep within the vast/unfathomable/expansive reaches of space, a chilling silence/void/emptiness envelops the once vibrant planet of Eridanus II/Reach/Installation 07. Centuries after the conflagration/tragedy/catastrophe that engulfed/consumed/ravaged Halo 303, its remnants hold a secret – a haunting echo/whisper/resonance from a time long gone.