If you want to do the task, if there are non-engineering majors, you have to add others to help you.
Material requirements: secret silver shell *2, unstable trigger, solid explosive, engineering skill point 235.
I suggest you prepare the materials first, and then find someone to help you do it. This is a relatively low-end project, usually a city studying engineering. The auction house sells materials, but if you can't buy them, you have to ask an engineer to do them again, hehe.
Wish you success! ! !