It was probably something no one could have imagined: before the great battle even began, the situation on Canopy Star's surface had unexpectedly developed in a remarkably favorable direction.
For example, the powerful Necrontyr Necrons had been reorganized into the "Overlord Bears" robot army on Canopy Star, complete with self-repairing Living Metal and super-advanced technology. As for that secret cult, it had been kicked out even more thoroughly. After several of its agents were killed, no further activity had been detected, so it had evidently decided not to cause trouble again for the time being. And the Orks, originally regarded as a theoretical major enemy, had become their own leader's private army and were now actively battling Terra's forces, saving the mine base a tremendous amount of trouble.
Finally, there were the Warp Daemons and Chaos Gods—the deep-rooted scourges that could never seem to be killed off completely. After they captured the Blackstone Obelisk tomb of the Necrons and began converting it, those entities would probably be completely dealt with before long.
Thus, whether they wanted to admit it or not, the truth was that almost overnight, all kinds of enemies, threats, and problems on Canopy Star had inexplicably vanished.
Having realized that the situation was developing in their favor, the senior commanders of the mine base, including Darius, could finally redeploy their forces and reorganize their defenses, preparing to fight the incoming invaders from Terra with everything they had.
As time passed, Horus's massive fleet drew closer and closer to Canopy Star. Even with nearly a hundred Battlecruisers constantly using advanced warp engines to harass and raid it, they could do little more than delay the fleet for a while and destroy part of its forces. They still had no way to solve the problem completely.
Therefore, as Horus's