可以让静静不离开的蝴蝶形部队徽章在哪里入手？？？？？标题长才任性！！！！！

吕寻欢

求大神解答啊啊啊啊啊~~~
国外牛人提供了获得方法，本人英文不行，哪位英文好的翻译一下~~~

To get the Butterfly codename you have to let Quiet do the majority of the shooting (lethal or otherwise). She simply has to neutralize more enemies that you. The hard part is that the codename which appears after a mission is actually based your performance in the last three missions - so you've got to consistently let Quiet do the shooting for a while.