I recently received and completed a mission on the mobile version with a reward displaying a lightning symbol x 1. It looks like the sumbol that indicates when a player has been destroyed by smoky in a battle. I don't know what this is, I can't find any new items or other things in my garage, and I really hope I didn't just do that mission for nothing. Anyone know what this mission reward is?

XD so helpful. Might be a drop zone on rio @ nitro box zone on red side. I got one there