It depends...
If your personal life consists to teaming up with strangers and doing bound and cover up a street whilst blasting threats or stacking up and doing dynamic entries, maybe some of the .mil/SWAT guys have just the training you need. Of course, maybe you need to evaluate your lifestyle.
That being said, many of those guys probably have good stuff to learn when it comes to individually running a carbine.
The flip side holds true as well.
A USPSA grand master would probably be a good place to go for learning how to run a pistol, but if he has never worn a badge or been in a combat arms military job, room clearing probably isn't his forte.