This post is directed to anyone wishing to take a TCCC course,........anywhere. One of the nice things about training military and PD groups is, they come with the tactical knowledge to work well together as squads and platoons and not get themselves killed. They could work out a squad assault problem if they were in a coma.
Combat Studies Group
DanMorgan76 is a good place to pick up some good information on communications and radios.