Complex sentence: The RFD is the 3rd largest fire department in the state of New York and currently operates out of 15 Fire Stations, located throughout the city, under the command of 2 Battalion Chiefs and a Deputy Chief per shift.
Split into simpler sentences: The RFD is the third largest fire department in the state of New York. It operates from 15 fire stations, located throughout the city, under the command of 2 Battalion Chiefs and a Deputy Chief per shift.