There is a great video on www.youtube.com
of well known instructor & legal use of force expert Massad Ayoob talking about a training seminar he went to where a large group of highly trained armed professionals(PSCs, intel officers, spec ops, SWAT/ESU, EP agents, etc) had a final training phase to complete.
Only Ayoob & a well known criminal justice industry expert/psychologist "passed" the seminar test.
Some of the working cops, special operations unit members, corrections officers, federal LE agents and instructors reacted so badly they had to seek out mental health treatment!
PS: I put up a message about Safariland Training Group's Armed Intruder course(in MA & Florida). Safariland is a highly respected firearms industry leader and the training staff are all well versed in tactics/use of force.