For a variety of reasons, the armies of the Imperium of Man had been forced onto the defensive. They pulled all their forces back into strongholds, fortresses, and camps, no longer launching attacks. Even the city-fortress offensive and defensive battle had ground to a halt, with only a small number of troops still engaging in limited clashes with Chaos traitors and Ork players.
However, some players were deeply dissatisfied with this—especially those who had failed to make it into the "five thousand warriors" chosen for the city-fortress offensive and defensive battle, the "campaign instance"!
Originally, thanks to the Imperium's army-wide infiltration and probing attacks, fierce battles had raged across hundreds or even thousands of kilometers around their base. They could encounter Astra Militarum troops, or Astra Militarum led by Astartes Space Marines, almost every day, and there had never been any shortage of contribution points.
But then, without warning, the Imperium's armies, unable to sustain the cost any longer, had been forced into defensive operations. With the enemies gone and their income plummeting, the players naturally refused to accept it.
Thus!
Only a few days after the Imperium's armies had been forced onto the defensive, enraged players—the enraged Fourth Calamity—shifted from defensive operations to a full-scale offensive. They began frantically searching for every possible stronghold, fortress, and camp where Imperium troops might be stationed, then launched relentless attacks.
Then, inevitably, during an assault on a supply station, just as the Astartes Space Marines and mortal auxiliary troops were pushed into desperate straits, a massive steel figure finally rose from the trenches at the center of the line.
It was a hulking thing over five meters tall. The inverted Omega insignia of the Ultramarines was set into its broad shoulder armor. One arm ended in an enormous siege hammer, while the