Not routinely, only where it could reasonably be foreseen that carrying an obvious professional camera around was a bit risky. There was only one of these kits, among about ten news camera crews. The usual kit before ENG was an Arri 16BL or Cinema Products CP-16, both using reversal film with a magnetic stripe when sound was required. The sound recordist carried the recording electronics, which were connected to the record and playback heads in the camera by about three meters of cable. Yes, I know it sounds daft, but it worked.
Indeed so. Any quality is better than none.