Let’s thing logically about this, I believe it is safe to assume that the children have been planning this escape for quite some time. Considering XB2’s abilities it would also be safe to assume that they have at least a rough layout of the areas immediately near the lab. They would not be able to traverse the hallways because of the surveillance system and guards being stationed there. The ventilation system would be their only method of escape.
Verity: Fact, escape via the ventilation system can be hindered via gassing the vents. Fact, we cannot due to health and safety violations.
Barney: Still... If we gotta we ask forgiveness later, not permission now.
Verity: If Subject XG1 and Subject XB2 succeed in making it outside of the vents, they will have to contend with military forces on watch. There are also multiple gates and checkpoints they would have to surpass.
Forzen: Gear is on. Let’s go.
Barney: Right.













