Major international networks have played the videos — along with the images of visually stunning, albeit militarily insignificant, launches of cruise missiles from Russian warships and submarines in the Caspian and Mediterranean seas. 

…The videos have served as effective promotional tools for Russian aircraft; air defense missile systems and missiles; “smart” bombs guided by lasers or satellites; diesel submarines; jamming communication systems; tanks; sniper rifles and modified AK-47s, analysts and other observers say. 

How Russia’s military campaign in Syria is helping Moscow market its weapons – LA Times

hmmm