Kev
Have a look at
Longmoor Group - Security, Close Protection Services, Courses & Training we had a number of ex military guys on the last course and some have written emails in commenting on the course, you can see them on our site. I have few more to post over the next few days. Some are members here and I would be happy to give you their details so you can PM them. The comments they have made speak for themselves.
Good luck in choosing mate.