From a previous blog entry regarding the Russian military build-up in Syria some clarification:
"U.S. intelligence has observed the possible staging of multiple rocket launch systems [MLRS] at Russian ports, which could be loaded onto ships bound for Syria."
CNN reporting that the MLRS in question not the TOS-1 but rather the BM-30!
"Obama authorizes resupply of Syrian opposition"
"Obama has stressed that the U.S. would continue to support the Syrian opposition as Russia enters the war-torn country"
"The latest U.S. assessment of Moscow's activity in Syria is that Russia has moved in several ground combat weapons and troops"
. . . .
"The equipment includes several piece of artillery, as well as four BM-30 multiple-launch rocket systems -- all considered to be highly accurate weapons. The latter is capable of rapid-fire rocket launches."
"The BM-30 Smerch . . . Smerch-M is a Soviet heavy multiple rocket launcher."
". . . Syrian military forces used the system against rebel forces in 2014 during the Syrian civil war."
"The 300mm rockets with a firing range of 70 and 90 km [50 miles] and various warheads have been developed for the Smerch MLRS."
A beast of a vehicle and a weapons system of formidable capability. From Latakia given the range of the BM-30 the Russian will be able to bombard the enemy without ever having left their main encampment!
That destructive power of modern conventional munitions quite extraordinary.