Hello everyone! I've been making a new story content for my game, and my question is - what would you need to create a fully functional nuclear weapon? Information I've gathered so far is that the main protagonist would need: person with knowledge of nuclear weapons (probably unappreciated post Soviet era scientist) weapons-grade uranium (enriched 90% U-235) or plutonium, don't know exactly what is more efficient KN-22 Krytron Tube - used as a trigger military grade explosive (Semtex or C4) - used to trigger nuclear reaction These are 4 basic points I've been thinking about, it's mostly based on information I've gathered from various movies I've seen and various books I've read. I'm definitely sure there is also something more to add. Main idea is that the protagonist needs to visit various locations to retrieve the materials, so more things the better. Also, I've seen a movie recently where they acquired a WMD and needed to initiate the "transportation safety switch" in order to be able to safely transport it. This knowledge of nuclear weapons safety mechanisms would be also greatly appreciated. I know that the US has their WMDs secured so no one could fire it without proper authorization - because of this, the WMD needs to be built, not stolen (and it's kinda unrealistic to just go and try to steal a nuclear warhead from the US, I'm trying to be as much realistic as possible here, not hollywood style). Thanks in advance for any help provided! Sorry for my horrible English, it's not my first language, but I'm trying!