Battle Of Ragnarok

Summary.
The Battle of Ragnarok was a definitive moment for the Revenants Chapter of Space Marines. The Ragnarok system was the name given to a system of habitable worlds held by the Ork Warlord Grashkar Gitface, and in early M40, the Imperium decided to take it from them, sending the Revenants and three regiments of Imperial Guard to do so.

Early campaign.
At first, the Revenants and the Imperial Guard encountered only light resistance, however as they continued through the system, the resistance got heavier and heavier. Most of the planets were sparsely populated, and thus easily captured, but Ragnarok IV was held by the elite of Grashkar's armies, as well as being the home of Grashkar himself. Three months after arriving in the system, Captain Bane of the Revenants decided to take the planet.

Ragnarok IV
Upon landing the Imperial frces were met with staunce and brutal resistance from the Orks. Captain Bane himself was killed three days after arriving, command of his company passing to Brother Sergeant Yan Rill, who led the Fourth company of the Revenants in an assault on Grashkar's palace itslef.

The palace was hardly deserving of the title, consisting of a kilometre tall pile of barely-organized junk. Within a maze of scrap-metal corridors, the Space Marines fought, and eventually cleansed the entire building. Yan Rill himself killed Grashkar, and with his death, the remaining Orks had lost their figurehead, and were slaughtered.

Aftermath.
The Imperial Guardsmen were left to mop up any surviving Orks and begin setting up Hab-Domes for the incoming Colonists. The Revenants retured to Peace, their home planet.