Disclaimer: I own nothing except the scenario…everything belongs to JMS or Games Workshop.

B5/Warhammer 40000 crossover

Arrival of the Astartes

Prologue

The Circle Shatters and so it begins.

M30.451.232 Galactic North

Extraction point: Delta 6.

The war that had been raging across the world of Ullanor was finally over, and it was time to leave.

They had spent nearly a year taking this world from the vile greenskins and rebel men, but they were Astartes and they had conquered. They had lost many good men, including Captains Abaddon and Ahriman, but as the serried ranks of men, machines and tanks entered Stormbirds or other transports to take them up to the ships, the only thought on everyone's mind was that they were going home.

But this crusade had changed the legions. Some of the great companies were decimated and had joined together creating what some were calling the extreme assault companies; 2000 marines of the two legions, divided into 4 cohorts of 500 and the cohorts divided into 5 groups of 100 men. These heavy assault groups each had enough weaponry to outfit an Army division.

IBB Fist of Horus: In Orbit.

Horus stood looking out on the vast array of imperial ships, feeling very odd still about this new title of his, Warmaster of the Imperium. He didn't know yet if he enjoyed it or despised it. A presence gently made itself known to his mind. It was his brother, Magnus.

He thought on Magnus for a minute, a giant of a man standing some inches taller then even their father the Emperor did. He knew of the rumors of taint surrounding his brother. He didn't allow it on his ships, and any of his Astartes that uttered such an idea were severely punished. Bondsmen who uttered any such words didn't live long. The punishment for a bondsman was the same as for an Astartes.

He turned just in time for the doors to open and admit his brother. He looked at him, admiring the armor gifted to Magnus since his rescue of the Admech Battleship Sword of Mars when it was struck by surface to orbit artillery belonging to rebel humans. It was one of the new massive artificier forged terminator armours, the dark blood red ceramite contrasting with the almost white gold trim and decorations covering the suit.

"Magnus, would you and your sons like to accompany me and my wolves to Terra for this Grand Assembly Father is calling?"

The smooth quiet voice of his brother answered from within the ceramite armour, "yes. "

"There is something coming in the warp and better we be together when it comes than apart."

The helmet was removed and the large cyclopean eye of Magnus was revealed. "What is this thing you sense, brother? "

"I do not truly know, but something is shifting within the Immaterium."

"Then we should make best speed toward Terra, and warn Father," Stated Magus and Horus watched as his brother chanted softly before teleporting in a flash of energy.

A member of the bridge crew came up to him carrying the readiness reports for the fleet. "My Lord, all vessels are reporting fully readiness to travel, however the Mechanicus Battleship requests to travel with us."

"Tell them to form up to our right flank and provide coordinates, dismissed Crewman."

An hour later, the small fleet of 50 ships entered the Warp and was never heard from again.

M3.146.200 Sol

between Mars and Earth.

Commander Carn Mollari, commander of the Primus, a new type of heavy destroyer, was having a field day. He had just discovered a new primitive race that could be annexed or conquered into the Great Republic.

"Set course for Centauri Prime, the Centaurum and the emperor must hear about this system," Carn ordered, sipping from his lfask of Brivari.

"Yes, Commander, course set. Opening jump point," an officer replied.

However this time there was no smooth transition to jump space, and word would never reach the Centaurum about this system until the inhabitants made contact.

Space seemed to buckle and fold around Carn Mollari, as though the universe itself were coming undone. The very last thing Carn Mollari ever saw was a bolt of ghostly blue lightning that tore his ship apart and a large wolf's head biting a crescent moon.

All over the Galaxy, Vorlons everywhere shuddered in Fear, for something had just shattered the circle into oblivion…