Cosmic horror, desperate last stands, bureaucratic decay, and the terrifying reality of a fully awakened Necron Dynasty. The Narrative: The Doom of the Orpheus Sector
The Orpheus Sector first finds itself under siege by a splinter fleet of . The Imperial Guard (Astra Militarum) and local planetary defense forces are pushed to their absolute limits trying to contain the biological horrors raining from the skies. 2. The Awakening (The Necron Threat) Imperial Armour 12 - The Fall of Orpheus -Scans-.pdf
If you want to explore more about this era of the galaxy, let me know if you would like to look into: The lore and rules of Chapter Master The history of the Maynarkh Dynasty and the Flayer Curse desperate last stands
If you want to explore further, I can provide more details. Let me know if you are interested in: Imperial Armour 12 - The Fall of Orpheus -Scans-.pdf
Contains specific rules for running the Fall of Orpheus campaign in Apocalypse-scale games, including data sheets for massive war machines and unique mission scenarios [1].