Here is an excellent article from RECOIL Magazine:
http://www.recoilweb.com/reality-based-training-lessons-learned-62217.html
Ellen Puccarelli recently attended a class put on by SAGE Dynamics that included realistic simulated events that were designed to replicate mass shooting situations. While the RBTA has no experience with the training offered by this SAGE Dynamics, and therefore cannot comment on the quality of the instruction at this event, the article is an extremely well written piece describing many of the important aspects associated with the concepts behind effective opposed force simulation training. Nice job Ellen! This is an excellent article that we can recommend reading.
(note – the promotion of the RECOIL article does not constitute endorsement of SAGE Dynamics or its programs. None of the SAGE personnel nor Ellen Puccarelli have been certified in conducting RBT exercises by the RBTA. The opinions stated in the article are those of the author and not the RBTA)