Complex sentence: In her backstory, Kira disguises herself as a man and sells weapons to terrorist organizations in the mountains of Afghanistan, but during one such transaction in a cave, her cover is blown and she has no choice but to fight her way out.
Split into simpler sentences: In her backstory, Kira disguises herself as a man, and sells weapons to terrorist organizations in the mountains of Afghanistan. During one such transaction in a cave, her gender is revealed and she has no choice but to fight her way out.