Let me illuminate what you are talking about, you lying pile of Soviet rat crap, for other readers. You are referring to a Russkie story planted in Russian media, alleging that the "rebels" captured a Ukranian BUK unit, before said unit was transferred to the rebels. The evidence for the story? NONE.
In the report above they mention that the rebels were bragging about capturing Buk missiles. On June 29th there were articles published to this effect, but the stories seem to only be carried by Russian state-operated news agencies. The original source for the story appears to be TV Zvezda, the news agency for the Russian Ministry of Defense. It's not clear that the separatists ever captured Buks from the Ukrainian military or whether these stories were a front to explain how the rebels obtained such advance weaponry.
http://www.interpretermag.com/ukraine-liveblog-day-150-ukrainian-troops-describe-grad-rocket-attack-from-russia/
The Interpreter has shown, again and again, that right before the Russkies send tanks or something over the border, they plant in their media claims that the separatists "captured" them somewhere.
And THIS is what you are repeating, like the lying pile of crap you are, on this forum, while double-lying about "Kiev and their trolls vehemently [denying]" things.
LOL...
So, the AA unit in Donetsk was never overrun in your fantasy world?
Just wait . . . the SAM unit was floated up river by barge, or something, by Right Sector Nazis. It’s coming . . . .