The Russian Defense Ministry has published a clip showing National Guard troops participating in military exercises, practicing the use of 100 mm MT-12 Rapira (lit. "Rapier") anti-tank towed guns (also known as 2А29 or Т-12А) in the Donetsk People's Republic (DPR).
The servicemen practiced locating a mock enemy using unmanned aerial vehicles (UAV) and then opening fire on it.