Mithias was already on his feet with swords drawn when the center of the room ultimately exploded, tossing him aside. There was no way he could have anticipated such an attack, even with his supernatural perceptions. His first thought was that the Outliners had used some sort of weird, ghoul, kaja-hooi shit to sucker-punched them all right in the face. He was furious. He had no knowledge of Tyrannid, or races like them, and so had no concept of what was inside that massive, disgusting pod. All Mithias knew was that battle had begun, and he had to be ready to react to anything. As he got up, he felt the touch of a hand on his shoulder and instinctively flinched and threw it off. Having lost his grip on Mithias, Keith was only able to pull Argonious into his protected shadow realm. 

The tentacled creature burst out of its shell, quickly melting people with its goo. Wisely, Mithias stepped back and realized he had to hold his breath. The caustic fumes and spatter were potentially lethal, even for him if he were exposed to enough of it. he had no idea how to approach this monster, or even if he should, but there was no one around to seek guidance from, he was technically surrounded by enemies. They all were. Could this meeting really not have been a setup from the start?

Thankfully, yet suspiciously, the Imperial general proved himself very capable of destroying the monster and did so. As its burn-out form smoldered into ashes before them, Mithias exclaimed accusingly at Kaldor, "'Planet-wide evacuation??' Is that really necessary?!" Mithias shook his head in fury and confusion, sputtering from having forgotten already NOT to breathe. He glanced at the others who appeared to have been struggling similarly. Keith's clones began to appear, and it became clear the attack was not over. Similar, dog-like monsters were now running around, attacking people. 

How could this have happened? What were these creatures, and why did they suddenly appear exactly here, at this crucial moment? Mithias' quick wit put the pieces together for him... It was a betrayal by the Imperium of Man. It had to be. They must've summoned a threat that they knew their enemies couldn't contend with, and yet one that they apparently could handle just fine. What easier way would there be to claim Arcadia? Simply wipe out your enemies with a "disease" of sorts, then come back later to a world ready for cleansing, and all the while, they would look like heroes. It was laughably simple. 

Mithias wasn't going to have any part of this. With Keith and Argonious safe, he had no moral obligation to remain there. Self-preservation could be pursued with no holds barred. He'd have to find a way to deal with these foul monsters as well as the other factions, but that could all be worked out later. He made a dash for the edge of the platform only to be met with one of the large dog-beasts. He slashed, and his sword skid off the armor. The damn thing was plated, and fast. It swiped at him, and he dodged, only for it to leap with the weight of its body on top of him. A telekinetic blast threw the thing aside, but not before a long claw had reached far enough to tear into Mithias' chest. 

Mithias shouted, yet the pain was brief in his adrenaline-fueled state. The creature was back up and charging again like some kind of rabid machine. This time, he lifted it, and burned it from the inside with his pyrokinesis much like Kaldor had. The only problem was, this method of killing these creatures was slow, and there were more coming by the second.