Carla Brown is a former MJ12 scientist and member of X-51. While she was in the employment of MJ12 at Area 51, her team conducted the open air tests of the grey death virus on a nearby highway. During the attack on the X-51 Vandenberg facility, Brown escapes to the rooftop of the Command building, where she is pinned down by two MJ12 snipers. She is saved by the arrival of JC Denton. She informs JC of the situation and asks him to turn on the auxiliary power so that the X-51 military bots can be reactivated.