“We engage here. These people who were in these positions here run 20 meters across the open area and defend here,” lectures the young instructor, flicking his marker across the whiteboard to represent rifle fire. “If we need to withdraw, our friend throws two grenades on the move and retreats here.” Sergeant Vadym “Malyi,” 26, is no stranger to teaching the bare bones of infantry tactics to new recruits.“Now, in order to storm you, the scum needs to get out of the trenches,” he continues. “This area, 20 meters, is out in the open. What does it give us? A chance to kill this guy.”Ex-prisoner soldiers of the 1st Separate Assault Battalion "Da Vinci" at a base in Donetsk Oblast on Sept.