Send a crew up the stairs to spray a floor. Or park it at the FDC to pump water into the building so hoses up high get pressure.
Raises its aerial to a window, sprays from outside and brings people down. Reaches up to floor 8.
Searches a floor and leads people down the stairs. Can't get to people right next to heavy fire.
Smothers fuel fires (cars, gasoline) that water can't put out. Unlocks at Harbor Tower, where it comes with the 2nd alarm.
Huge water cannons that never run dry, reaching the pier and floors 1–3. The only unit that can fight fire under a pier, and it can pump harbor water to the dock if the hydrants fail. Unlocks at Pier 9.