The 55º Batalhão Polícia da Cidade (English: 55th Battalion of the City Police) (55th BPC), better known as the Unidade de Forças Especiais (English: Special Forces Unit) (UFE) was an anti-gang tactical unit of the São Paulo Police Department dedicated to combating members of São Paulo based gangs such as Commando Sombra, Filhos de Ogum and Tropa Z. Secretly, the UFE rounded up poor favela residents during raids and shipped them to the paramilitary Crachá Preto for use in their organ harvesting trade, in exchange for large sums of money. They worked under the employment of Victor Branco, under the leadership of Armando Becker and Gilberto Bachmeyer.
In 2012, they were allegedly hired by Victor to search for Fabiana Branco, his sister-in-law, who was kidnapped by the Commando Sombra at Club Moderno. Bachmeyer later infiltrated the building and assassinated Rodrigo Branco, Victor's brother, at the orders of Becker and planted C4 under his desk to both destroy the building and Rodrigo's body. Later, the UFE invaded the Nova Esperança favela to exterminate the gangs and snatch more civilians for organ harvesting. Max Payne, who worked for the Branco political family as a bodyguard and sought to rescue Fabiana, engaged UFE personnel in the favela and witnessed them hand Marcelo Branco and Giovanna Taveres to the Cracha Preto to be killed, though he managed to save Tavares.
Later, Payne infiltrated the 55th Battalion Headquarters and slaughtered the UFE men who were stationed there, including Bachmeyer. He discovered Victor and Becker's duplicity, though they escaped after Becker tased Payne. Payne later assaulted Piratininga Airport, managing to eliminate the remainder of UFE. kill Becker, and allow SPPD detective Wilson Da Silva to arrest Rodrigo. UFE was disbanded afterward.