Did one feel danger? Did one feel pressure. Did you think that meant you're feeling fear?
NONONO!
The pressure toward an individual from this C Grade restricted region wasn't big since all they needed to do was survive. They didn't have to resist completely and get wiped out and could even run if they faced a powerful mutated beast. All of this was especially possible with the appearance of the KD Heavy Industries weapons. Everyone's confidence grew to an unprecedented level.
At this moment, they were all very happy. Even those who were more cautious and more prudent than others were moved by this kind of atmosphere.
They'd spent entire days training and had already lost interest in that. When they thought of how they would be having real fights in this place, they began thinking of it as more genuine training. And with so many people grouped up together and with all of these strong and powerful weapons, what could stop them?