She had a choice she thought. Deal with the threat behind her, or finish the one in front of her. She had a little trick she used to judge things like this. Just look at the shadows. The one behind her was relatively close, while the other one was on the charge planning to close the gap quickly. Her gun was still in one hand and she knew from the fact she only fired one shot there were another five still active in the chamber. She took aim from behind her cloak using the shadows as her sight and pulled the trigger sending a round of silver coated lead barreling straight for his skull as she prepared to trade blows with the other.