NYPD forces were already fighting the Soviet Armed Forces when Christopher Stone showed up. Taking C4 from the pile the officers had taken from a downed Red Army Truck, he blew up the nearby gas station in order to kill the snipers preventing the officers from moving. Chris then proceeded into the station, killing several soldiers in the process, and rescued the leader of the Resistance, Isabella Angelina. The Station was then taken and Soviet forces retreated to the post office. There Chris lead a group of Fighters in a bid to take the office. The office was also taken and Soviet forces were, yet again, forced out of the area.
SAFN, with their anchor Tatiana Kempinski , announced the "many casualties" during the raid and speculated about the identity of the villain being called "the Freedom Phantom". A bounty of $250,000 was placed on the Phantom's head, although in U.S. dollars, curiously, not in Soviet rubles.
The NYPD eventually joined the Resistance due to similar goals, and thus this battle at one of their former precincts marks their last appearance (directly) in the game. Police uniforms are not intended to be used fighting in the streets indefinitely, so any NYPD officers who joined the Resistance would have soon adopted the same mishmash of civilian and military clothing and gear that the Resistance used
NYPD - Light
Resistance - Light to None
Soviet Armed Forces - Heavy