The HMSG have a new video as part of their correspondence course material:
Hey Guys, The Historical Military Simulations Group has a new training film online for our US Grunts in Vietnam. In this correspondence course you will be provided a basic overview of US Army and communist weapons. You will receive training in marksmanship and maintenance. See: http://historicalmilsim.com
The film is part of the course catalogue that HMSG is building from archival materials. You can see the list of classes HMSG is developing for historical Vietnam conflict players here
LT MAC, Team Two Zero – Long Range Patrol, Historical Military Simulation Group Advisor (HMSG)
