Does anyone actually have a firm grasp on where all the parts spawn? I have scoured the entire map and I've found most of them but I literally CANNOT find the last part I'm missing for the Pack-A-Punch. I don't even have a firm grasp on the spawn points for all the parts yet. It's immensely frustrating given how dark this map is and the fact that there are no walkthroughs on the internet at all. At least, not that I can find.