Russian POWs Before Execution

A video showing Russian DPR soldiers before been executed.

Ukraine claims the last soldier fired at them and that the DPR soldiers had set up a fake surrender.

In a real fake surrender/ambush you would have 3 or 4 guys from different directions shooting at the Ukrainians.
Not just one guy.

The video also immediately stops when the suppose gunman (Could be Ukranian) pokes out. Very odd the video did not show the rifle flash.