The merc tumbles and the grenade rolls from her hand to under the truck she was unlimbering, its blast rips away a corner of the vehicle, in a sharp vertical shock of smoke and debris. She lays there un-moving, most probably dead. Assuming Rojo ducked for cover, last he might have vaguely seen is another merc at the truck in front of this one, running around it away from him.
Turn 5; Calson is at Gaston and Nerissi, near where they lay (their bodies are in fact separated by a few meters). Scree, Chir, Leon, and Elton are back with Zhenya, who lays unconscious in or near the wreckage of the storage car.
dragoner rolled 6d6 and got a total of 21:
1, 5, 5, 3, 6, 1