As early as when Kendall—the "blue dot"—entered the Red Team headquarters alone and wasn't immediately eliminated by the "red dots" stationed there, everyone in the simulation control room turned their attention to her.
Using a high-definition, zoomed-in military satellite map, they could clearly see Kendall's face and immediately recognized her as the internationally renowned recruit.
Everyone was shocked—wasn't Kendall just a rookie?
That's when Nathan explained that he had personally approved Kendall's participation in the exercise.
Before anyone could ask why, Kendall began her operation.
First, she "eliminated" the Red Team guards and disguised herself in their uniforms.
Next, she "took out" the patrol team and blended in with them.
Eventually, she reached the shed just outside Red HQ.