Worlds of the Narrative: Cerberus

Planet: Cerberus.
Segmentum: Ultima.
Sector: Cerberus.
System: Cerberus.
Surveyed: Unknown.
Planets:
Cerberus I - Dead World.
Cerberus II - Gas Giant.
Cerberus III - Frontier World.

Summery: The Cerberus system has never belonged to the Imperium. At least not in reality. The system has been cataloged for thousands of years but never seen as worth the effort to draw it into the larger Imperium. At some point in the last three thousand years the system fell into the hands of the Death Guard, who claimed it for their dark master. Mighty fortresses and cathedrals to the plague father were constructed. Cerberus operated as a secretive staging ground for the plague fleets to raid the surrounding systems. Any attempts by the Imperium to push into that sector has been met with defeat.
Size: Equatorial distance - 12,000 miles.
Gravity: 2.00 G.
Satellites: One tide-locked moon.
Population: Unknown.
Orbit: 448 million miles from it's star. Abraxes takes 12 years to complete one orbit.
Climate: Mean surface temperate of 15 degrees centigrade.

In the aftermath of the Indomitus Crusade and Mortarion's attack upon Ultrarmarr, primarch Roboutte Guilliman set plans in motion to bring together a large force of the Imperium with which to scourge the taint of Chaos from the Cerberus system. The largest Imperial force ever assembled launched itself towards the seat of Nurgle's power.

The fleet translated back into normal space a weeks travel beyond the edge of the system. A Mechancum fleet accelerated forward and then cut power. Powered down they drifted forth and was able to enter the system without being detected. When they did power up they smashed a hole through the planetary defences for Cerberus III. The Imperial fleet arrived and used the opportunity to punch through the holes, deploying large numbers of bulk landers and space marine drop pods through to the surface.

Notes: Cerberus is the world for games against the majority of Imperial armies, whether they be space marines, astra militarum or cult mechanicus. Certain space marines, should they get their own primarchs will probably end up having their narrative world but I shall see whether I can fit them in narratively.

Tide of Battle:
Adeptus Custodes victories: 0.
Adeptus Mechanicus victories: 2.
Astra Militarum victories: 3.
Blood Angels victories: 2.
Grey Knights victories: 1.
Space Marine victories: 3.
Space Wolves victories 0.

Total Imperial victories: 11.
Death Guard victories: 6.
Draws: 2.

The Imperium has caught the Death Guard severely by surprise and it is showing. They have managed some victories and a couple draws but I need to work harder to take the fight back to them.

1. The Indomitus Crusade Begins (7th edition).
2. The Ritual (7th edition).
3. Outpost Raid.
4. The Balantine Massacre.
5. Stronghold Assault.
6. Contact Lost.
7. The Imperium Advances.
8. Holding Action.
9. Lunar Engagement.
10. Blockade Mission.
11. Ordered Retreat.
12. Blood in the Sands.
13. The Brothers War.
14. The Dyatlov Pass Incident.
15. Battle for Starport Twelve.
16. Battle for Chernobog.
17. First Battle for Gothos.
18. First Battle for Castellan.
19. Shock and Awe.
20. Necropolis Street Fight.