Unpack the contents of "fivem-b**" into the "bin" folder created in the root folder of the GTA V game. Multiplayer is launched via "CitiLaunch". The game starts, log in with the Social Club login. Next, select the story mode, after loading into the story, press the "F6" key and you are connected to the server.
** FiveM build version
P.S. Download new build files from the official site indicated under the author