A melee aboard the ship

Thousands of Navy Soldiers had already sealed the shattered breaches on the lower decks under the leadership of their Commissars and Veteran Sergeants. Countless las-beams and solid rounds filled the passageways.

Any Daemon that dared charge into the passageways would be mercilessly banished.

Heavy void combat suits made the Mortals soldiers move more slowly than usual. The blasphemous roars of the Daemons before them seemed to reach into everyone's minds even through the vacuum.

Psychic terror assailed every naval soldier.

Several conspicuous Bolters suddenly flew overhead, instantly blasting apart the hideous heads of several Daemons lurking at the far end of the passageway.

"Stand aside, soldiers!"

The voice over the temporary communications channel was deep and authoritative, filled with absolute confidence and unwavering resolve.

The Navy Soldiers crowded along the lower hull's defensive line, clutching their weapons as they struggled against the Daemons, knew that voice well.

The Ultramarines had arrived.

The figures clad in blue ceramite armour soon blocked the narrow warship passageway with their bodies alone.

The remaining Navy Soldiers cautiously used the Ultramarines' bodies as cover, following alongside them as they began a slow advance.

The Daemons seized the lull in firepower to charge forward madly. Then they smashed themselves against those blue figures.

The Ultramarines wielded Chainswords and Bolt Rifles, firing continuously with one hand while the other sliced every approaching Daemon into pieces.

"Holy Emperor, whose might shields the realm of humanity, we are your blades, advancing at the direction of your will. Grant us courage and strength to resist the corruption of Chaos and safeguard the peace of the Imperium."

Over the vox, Priests of the Ecclesiarchy continuously recited the Emperor's Prayer to bolster the Mortals soldiers' resolve and preserve their mental stability as best they could.

As Bolters poured forth, several compartments in