So it goes like this: First get a ghost that can detect spinmetal and a sniper with a lot of range. Then go into the cosmodrome and there are 4 locations you wanna go in order for. Spawn area, mothyards, the shipyard and the rocketyard. Just scope in with the sniper and it should point out where to find the spinmetal in that area. When your done with one area move on. Then when changing areas you may notice that when you scope in on the next one that no spinmetal will show up. This is normal. You just gotta wait a minute or so for the materials to spawn in. Check it every minute or so and they should pop up pretty quick. Ps. If your a Hunter use your enhanced radar. Hunters are easy mode for this part lol