I thought some might find some interest in this article. I would like to point to a couple of items in the article, first the last sentence in para 3 that intimates the effectiveness of conventional artillery and the need of dispersal tactics (As was advised in a couple of posts in this thread.) to counter it and that basically CM is there to counter that tactic with the effectiveness of CM, well that's my read on that. Second the last couple of paras cover "SKEET" CM as currently being used by the U.S. and I had forgotten we stopped exporting CM.
http://www.defpro.com/news/details/17272/
Regards,
Pat