Please introduce Amy's character in 'Defiant War'.
Amy's character introduction in 'Defiant War': Amy was a 22-year-old young warrior with excellent combat skills. She came from an ordinary family, but she had shown a love and talent for combat since she was young. Before joining Defiance, she had already accumulated a wealth of experience in battle for many years. Amy's combat skills were outstanding, and she was good at using all kinds of weapons, including pistols, rifles, and light machine guns. Her fighting style was calm and decisive, and she was good at making the right decision in a crisis. In battle, she was always alert and brave to meet challenges. She was an excellent warrior. Amy made many good friends in the battle and experienced many thrilling battles with them. She had once sacrificed her life to protect her teammates in a mission, but in the end, she successfully completed the mission and received the respect and praise of her teammates and enemies.