Virtually nothing is known about Phillips' life, other than that she was under the command of Lieutenant Marvin Branagh and that she admired him. She also had a camaraderie with her colleague, Kevin Ryman.
Raccoon City Incident
After the t-Virus contaminated Raccoon City's drinking supply and the mass appearance of zombies broke out, Rita spent the next several days within the Raccoon Police Station as it was besieged by zombies, attempting to hold the line with her colleagues against wave after wave of infected breaching the building. As civilians and officers continued to fall attempting to fend off the infected, it was clear that the remaining officers and refugees could no longer keep the station safe.
Amid the loss of ground from those infected within the police station, Phillips discovered the existence of a secret tunnel from the building's art museum past, suggesting an escape route through the sewers using said passage, but was ignored due to the likelihood that there would also be zombies infesting the channels. This suggestion would later be explored seriously by Elliot Edward in desperation after the station had been entirely overrun by the infected. Instead, she and her surviving fellow officers, Kevin, Aaron, Tony, and Fred, along with several surviving civilian refugees, operating under Branagh, devised a final, desperate escape plan by using the station's long-forgotten vent shaft tunnels, as communications with the outside had been lost, it was only a matter of time before the precinct would be completely overrun.
As the only person small enough to move through the vent system, Phillips managed to escape the police station, and returned with fellow officer Harry, who had survived the chaos in the streets by remaining inside an RPD tactical van for several days. The two drove back to pick up the survivors at the front gate of the building, but another attack had left most of the remaining officers dead, and Branagh, himself, had to be left behind as he was mortally wounded and acted as the buffer between the infected and the survivors as they escaped. Despondent upon being unable to save all but Kevin and the civilian refugees, Rita broke down in tears, with the survivors attempting to comfort her as they fled the police station and Raccoon City. Rita's ultimate fate following the evacuation of the station is unknown.