Details of Russian ships and aircraft actually involved are scanty. Imagery of Russian vessels and marines may be old and unconnected with any "joint drill".
Russia's Sputnik News 18 September 2016, dutifully reports: "...On [17 September 2016] Chinese and Russian naval forces carried out joint air defense and anti-submarine drills in the South China Sea near Guangdong Province as part of an eight-day naval war game, Joint Sea-2016, the largest naval military exercise ever between the two countries...."
For those with eagle eyes, for coffin launchers and ship-numbers, you might notice one Russian destroyer, Admiral Tributs (No. 564) which may or may not have been present at the "joint" drill.
Due to the elderly nature of most Russian vessels Russian flotillas and fleets on exercise or operations are routinely escorted by tugboats in case of breakdown(s). See this tugboat saved breakdown of Russia's Kuznetsov aircraft carrier.
Most likely there was a Russian tugboat deployed for this latest 2016 naval drill... If so it would have a befitting name. Russian ships and submarines are frequently named after famous dead Russians. In the case of the tugboat it may well be named Yakov Yurovsky (who was the head executioner of the Romanovs (the Russian Royal Family)). Yakov Yurovsky (with young Stalin like looks) was a secret policemen (in 1918 a "Chekist") later called KGB, now called FSB. This makes the name Yakov Yurovsky dear to Putin's heart because Putin had a career in the KGB and later he was Head of the FSB (1998 - 1999) on Putin's way to becoming President for Life.