Drawing subsonic rounds (need help) (Dying Light)

People help, I passed the mission Parking, like everything came together, all the jumpers were not killed, at the end of the inscription, the mission was completed, but drawing of subsonic ammunition does not appear. However in the process of passing when you press on th well, q could see that the jumpers down somewhere flew by themselves, would have failed. Maybe it affected. Play license. Is there any chance of something more like take this drawing?