Fiammetta
Fiammetta is by far the most stressed out and angry sniper you will ever use in Arknights. As a six-star Artilleryman from Laterano, she literally rains fiery destruction across the entire map. But her main job is really babysitting. She is in charge of the Notarial Hall and is always chasing after angels like Mostima and Exusiai, who are always getting into trouble. It is so funny to see this serious Liberi girl get mad at her friends for doing silly things all the time. She is the only one who has all of the team's brains. You just want to give her a much-needed vacation with pay.
Fiammetta really nails that hot-headed tactical waifu look. Her hair is bright and fiery, and her eyes are orange and always glare at you. She has beautiful red wings that go perfectly with her sharp Laterano military uniform and tight thigh-highs. She literally carries around a huge grenade launcher that hurts her own health to do a lot of damage. She fits the classic loud tsundere archetype perfectly. She really hates her embarrassing chuunibyou names, like Suffering or Dawnbreaker. Fans love her because she always seems so angry, but she really cares about her team. She will yell at you loudly and make sure you are safe.
Fiammetta is the perfect choice for an energetic wallpaper because it brings a lot of energy to your screen. Artists love to draw her looking really angry as she walks away from huge explosions of fire. There are also a lot of funny fanart pictures of Mostima teasing her. This angry red bird is a must-have for your desktop, whether you want a serious combat background or a funny slice-of-life scene. You can not ignore her because she looks so cool.