I was actually going to have very something similarto this in the latest chapter of A Drunken Arcwitch Marriage, but decided to cut that part out.
So consider this a deleted scene to it.
Prompt: Team Rwby discover that they unintentionally caused the death of a civilian during the highway chase.
Glynda sighed as she walked over and stared out of the closest window. She had invited team RWBY to talk about the Paladin engagement they had with Roman Torchwick last night.
She didn't know what she expected. They were young and in their first year in one of the four main huntsmen academies. Cockiness and arrogance were expected, especially since they took out and destroyed a powerful mech prototype. She wasn't upset that they took pride in their accomplishment, but to show a total disregard for their own safety and for the collateral damage that they caused…
She took out her scroll tablet and pulled out an image before turning it around to show it to team RWBY. Their expressions sobered and their cheerful attitude dropped faster than a ton of bricks.
It was an image of an aerial view of a car wreck, zoomed in. Paramedics could be seen wheeling a woman away from the wreck. Blood was visible.
"Do you know who that woman was?" Gynda asked. The girls shook their heads, too horrified to look at Glynda. "Her name was Carolina Teale. She was 42 years old. She lived near the strip district. She was married and was a mother of a son and daughter, twins. She had a brother and a mother and father who loved her. She was also a casualty from last night's events."
The members of team RWBY gasped, some covering their mouths as shock and horror took over their faces.
"She… she's dead?" Ruby managed to whisper out.
"She was a casualty," Glynda said as she put her scroll away.
Tears started to form in Ruby's eyes as Yang tried to rub her back in comfort, but even she was unsettled. They knew what it was like to lose their mother. It wasn't a pleasant experience. Now, two more kids were going to go through that, because of them.
Blake's breath shuttered as her hands shook. She wanted to go after the White Fang to stop them from hurting more people. But by doing so, a mother got caught and killed in the crossfire. Two kids will never see their mother again, because of her.
Seeing friends and family disappear often growing up, Weiss was good at hiding those emotions, but her eyes still shown with despair. To think that she would be in part responsible for kids to feel the loss of family like she did many times through her childhood…
"No one is blaming you for this," Glynda said, "Not even 's family." Team RWBY looked up in confusion at this. "While it was foolish of you to go and tackle a dangerous terrorist group on your own, no one could have predicted that Roman would have fled to the populated streets." Her eyes narrowed slightly. "But take this as a warning the next time you decide to do something like actions will have dire consequences. You four are dismissed."
Team RWBY slowly got up and left her office, their thoughts plagued with grief. As soon as the door was closed, Glynda sighed and took a wine bottle out of her draw and poured herself a glass.
She felt only a little bad about technically lying to them. Mrs. Teale was a casualty in the fight last night, but she wasn't dead. By definition, casualty counted for both killed and wounded. While she suffered from multiple lacerations, none were deep and she was expected to recover in a weeks time.
She purposely neglected to tell them that. The sooner they realize what harm their carelessness could cause, the better and more carefully they'll act and think in the future.
