Destroy Nightmare Diambi near the Resistance Base and collect Broken Diambus Pieces, then give the pieces to Jimmy Perkins at the Resistance Base. Use your quest tracker to see your progress.
Jimmy Perkins: Is this really the design that Dante made? NakanoAzusa: Yes, he wanted me to give it to you. Jimmy Perkins: Did he steal it from somewhere? It's amazing. HiiragiKagami: Is it that great? Jimmy Perkins: Yes, it is! He changed the water-run demolition Jimmy Perkins: into an air-run machine. Maximum distance and Jimmy Perkins: effective distance are drastically increased as well! Wow, Jimmy Perkins: and 400 to 500 shots a minute! Dante must be a Jimmy Perkins: genius. HiiragiKagami: Whoa! A weapon that shoots 400 shells in a HiiragiKagami: minute?! Jimmy Perkins: What's more incredible is that the barrel doesn't Jimmy Perkins: get overheated after that! NakanoAzusa: Hmm, if something like that is made, the NakanoAzusa: Resistance Base would be safe. Jimmy Perkins: Yes, it would be. NakanoAzusa: Can you make it? Jimmy Perkins: The design has specific details, so it shouldn't be a Jimmy Perkins: problem. But the problem is securing the materials for Jimmy Perkins: it when we're encircled like this. To make the frame, I Jimmy Perkins: need very strong steel. NakanoAzusa: Can you find material like that? Jimmy Perkins: The Lost Mines has diambi that the White Lions brought. NakanoAzusa: Those things that fly in the air and attack humans? Jimmy Perkins: Yes, it's a product of magic and alchemy. Please Jimmy Perkins: destroy those and collect their scraps. I should be Jimmy Perkins: able to make demolition out of that.
Reminder Dialog
Jimmy Perkins: Those diambi are strong! They're Jimmy Perkins: hidden weapons of the White Lions. Don't think Jimmy Perkins: they'll be easily destroyed just because they're small!