Battles on Mezria VI

The situation on Mezria VI escalated rapidly as 06.022M42 began. As predicted, a stream of new spores began to rain down onto the planet, and the world itself began to experience earthquakes as the influence of the hive mind affected reality itself. Three major engagements followed, as the tyranids launched themselves at hastily prepared imperial positions. First, hive fleet Poseidon clashed with the Dark Angels, forcing the astartes into retreat, as another strain of the xenos launched a major assault on the main imperial lines.

Here the main fighting took place all along a front line that had been set by the local imperial commander. He had support from the Imperial Navy and the Adeptus Mechanicus, in the form od a warhound titan squadron. Initially the air support did well, mowing down hordes of xenos creatures, but the swarm kept coming. In a desperate attempt to hold the alien advance, the titans charged into the fray, only to be overwhelmed by the smaller creatures, which then ended up swarming all over the rear of the imperial lines. Their defences compromised, the imperial guard were obliged to retreat

The second line of imperial defences faired better, as yet another strain of tyranid genome sprung forward through the gap created by the first frontal assault. As these tyranids crashed into the imperial lines once more, the same story almost played out once again, were it not for the bravery and skill of the imperial rough riders. The venerable cavalry charged their foes at great speed, outflanking the xenos advance, crashing through alien artillery, swarms of smaller creatures and shrugged off concentrated fire from alien exocrines before reaching the rear of the tyranid assault. thus compromised, the tyranid offensive was stopped for the moment, but now the aliens controlled much of the world, and spores were continuing to rain down on the planet