In the" Hitler's house", the commander of the Reconnaissance platoon, Lieutenant Koshkarbaev, was given a historical combat order to plant a red flag in the Reichstag. The flag was presented to him by the battalion commander Davydov and the political leader Vasilchenko. He reached the Reichstag with a soldier named Grigory Bulatov and, following the order, planted the flag on the front of the Reichstag. It happened on April 30 at 18: 30. On February 21, 1958, the newspaper" Leninshil Zhas "published an essay by K. Kazybayev" the flag of the Reichstag". He was awarded the orders of the Red Banner, The Patriotic War of the 1st degree, and many medals. On August 10, 1988, he was buried in Almaty at the Office cemetery. R. Koshkarbayev was awarded the titles" honorary citizen of Tselinograd"," honorary citizen of Balkhash"," honorary citizen of Arkalyk". By the decree of the president of the Republic of Kazakhstan dated 07.05.1999, he was awarded the highest posthumous rank of distinction-the title of people's hero. In 2015, in honor of the 70th anniversary of the victory in the village of Akmol, the district center of the Tselinograd region, busts were installed to countrymen R. Koshkarbayev and T. Begeldinov from Tselinograd.