it was in fact training. It was done on the Cicero FD Administrative channel. Each fire department does NOT have their own "firegrounds" in Hamilton County. They have an "administrative" channel which they use to conduct training and official business without tying up the primary channel or other county firegrounds.
Please use caution when posting these kinds of stories as it can cause a fire storm that is unneeded.
Most of the time training is done on the special events channels, however with the smaller volunteer departments (namely anyone other than fishers, noblesville, westfield or carmel) use their admin channels for training.
Hopefully this clears up any issues.
Regards.