The room was shrouded in an eerie darkness, punctuated only by the soft hum of machinery and the faint glow of holographic displays. Jack, Maya, X5-12, Seraphina, and Adriel stood at the center, their eyes fixed on the colossal simulation chamber before them. It was a vast expanse, stretching beyond the limits of their vision, designed to recreate the most treacherous and enigmatic battlegrounds of the universe.