I think volley fire is fine. If you use it in cover, especially heavy cover, or a building, you are fine if there isn't overwhelming firepower coming in. Using volley fire out of cover is stupid unless if you're trying to hit a pio squad charging at you.
If there's a sturmpio in your face, if you're not in cover, if your RE is out of position, don't use volleyfire. Retreat or reposition.
