A few updates, some of uncertain veracity, others from reliable sources.

Via Twitter a purported film of Chechen fighters in Syria, that is on You Tube. IIRC reports of Chechen fighters outside the Caucasus have appeared before, who have reputation for fighting almost of mythological status. Links:http://www.youtube.com/watch?v=ZsYXy_0t0Qc and http://www.youtube.com/watch?v=h-IIC...e_gdata_player

There are small Chechen communities in Jordan and Syria - so probably not from the Caucasus.

Syria's regime have used Scud SSM before, it now appears a number have been fired at rebel-held districts of Aleppo:http://www.bbc.co.uk/news/world-middle-east-21563669

Finally there is a Bruce Reidel commentary:http://www.thedailybeast.com/article...offensive.html