Also, if you pause it when the guy with the bottle makes a cameo, it is clearly a molotov cocktail. Another guy a little later in the video clearly points a revolver at the pro-Ukrainian soldiers/security forces.
Yep, I noticed the Molotov Cocktails too. They were spoiling for a fight. The Ukrainians fired into the ground in front of them numerous times. I would be surprised to discover that the guy with the head wound was armed as well.