It seems that they have radios on 155.160, however the commander won't or can't allow them to use them for training exercises, so the OP is looking for options.
It still hasn't been made clear as to why the team can't use their radios for training purposes. It really is important that they be just as familiar with what their issue radios can, and can't do, and how any and all controls work, as they are with the rest of their equipment.
It just doesn't make sense that they can't use their issue radios for training.
If there is some law or policy that prohibits them from using 155.160 for training, then a second channel needs to be found, licensed, and programmed into their issue radios for training purposes.
John
Peoria, AZ