Mira didn't quite know what was on the other side of that door, though knowing this place it wasn't anything pretty, they didn't have so much security for nothing and they most certainly wouldn't delay an announcement in this situation, her mind still focused on the lack of knowledge they had about what was going on. A sound at the huge metal door told her whatever it was would be coming soon though and she for one was going to be ready for it, or at least ready for whatever happened. As another few hits sounded at the door she adjusted her gun on her shoulder and waited, a smirk on her face as she could feel a disturbing level of excitement from all of this, the suspense killing her. She didn't wait long as, for a fourth time the door was hit, only this time it shot off its hinges into the crowd of people laying in wait. Nobody moved though, their training telling them to remain motionless and stay prepared. None of them could have been prepared for what walked through that door though, a large muscular humanoid came through, speaking the name of a shock trooper. She was confused about how it knew his name but more surprised when the heavy armor of the shock trooper was pierced like butter with the blackened flesh, leaving the man dead. As he was thrown into the crowd people started shooting, knowing that this was surely no mere man and that it certainly meant them hard. Mira was conservative though, watching as the bullets seemed to do nothing to the creature and she had serious doubts that she would fare much better even with her superior firepower. She waited though, wanting to see what happened, but what came next just increased her doubts of this being an easily resolvable situation as creatures poured out from the doors and began to overwhelm the defending troops.
Soon she heard the voice of the CO again and she listened deciding to make her decision based upon what was said, of course when she heard the patients were to be released she knew what to do, retreat. There was no point in sticking around when an obvious distraction had just been made for all of them, who would find themselves in horrible situations if they stuck around, sharing the fate of those who had already fallen to these... Monstrosities. Mira turned around, watching as the two CCTU men next to her turned and left as well, she smirked, "Smart decision..." she muttered to herself, following them but quickly passing them up as she moved almost effortlessly through the crowd of patients filling the halls. She made her way to the CO, she would make sure that woman was kept safe as well as to get further instructions, because while she was a damn good soldier she was not a commander and she had no idea how to be one. She just hoped that the CO was still in cell block A or out in the open near that area, if not it would suck having to find her with all of the chaos that was going on around her.