Many troops fighting under the Wagner banner are not registered Russian soldiers, as a result, they are essentially disenfranchised. Injured Wagner soldiers aren’t treated as people or indispensable soldiers and there are several instances of people being shot or having their skulls broken to avoid suffering. According to Kuzan, this is how the “Wagnerites'” phony efficiency typically appears: This is only a short-term fix, he declared. They can afford to launch wave after wave of attacks as long as they receive reinforcements from these disenfranchised personnel. There is no question of complex military operations, so they can demonstrate feigned effectiveness by moving in a straight line to the front for several hundred meters, if not a kilometer, until then.
Source:https://www.yahoo.com/news/wagner-group-mercenaries-creating-illusion-162800841.html