Strategically speaking, Cancero's sacrifice had helped the Crimson Tide capture the Nightveil.
But in terms of the forces available to either side, its impact was not particularly great. Leaving aside the advantages and disadvantages of Eternal Sorrow's transformation, there was still...
He had not truly banished Omegon. He had killed an impostor. All the Twentieth Legion had lost was a vial of primarch's blood and an elite Alpha Legion warrior. On any other battlefield, that would already have been a decisive victory, but...
The Omegon was right beside them. This was their home territory. They certainly had more than one vial of primarch's blood in reserve, and more than one elite veteran.
Their Gloriana-class Battleship received word of the Nightveil's loss. Only a handful of warriors skilled at hiding remained concealed aboard her.
Another portion of Omegon's blood was brought out. Two Omegons could not exist simultaneously, but once one was destroyed, the next awakening could begin immediately.
When an Omegon-Ris appeared aboard the Light of the People, the Beiwei Army merely assumed he was a Chaos champion, somewhat larger than the other traitors and exceptionally powerful.
When the first veteran was cut down, the Beiwei Army merely admired their opponent's incredible speed and strength. When a second Beiwei warrior was killed in the fierce fighting, Evan ordered a retreat in formation.
The ship's defensive weapons viciously tore apart the attackers, and the High-Energy Laser Grid blocked their advance.
This Omegon was indeed an exceptional fighter, but his armour simply was not good enough. They could produce one primarch after another, and still had primarch's blood in stock, but their supply of primarch-grade armour was far more limited.
They kept only one suit in reserve for a last resort: the Scales of Cersia Armour. It belonged to Alpharius. At least,