Great vid so far [5 minutes in] but you need to lower the videos audio and increase the voice over so we can hear the instructors talking. Without being able to hear over the hissing of the gas valves and operating lines we cant fully understand what mistakes are being made, why they are being made, and what is being done to remedy those mistakes. I think I heard something about an issue with a portable master stream and feet, but not sure if it was poor placement or issues with the firefighter maintaining control of the device.