Ghost was on a mission at an old Lab to save some "special" kids there, He asked his commander what he ment by "Special" but he wouldn't explain further do to "low time" so he brushed it off

once arrived, Ghost and his crewmates made it past the Scientists by fighting them and went into the hall, most rooms were empty but 1 stood out, the cold steam coming out and the bars could give you frost bite

2 other kids were in a play room silent, just sat there but you were in the ice cold room