thx. deuterium fusion isn't even fusion in this game as it produces only neutrons and no other elements, such as, for example, helium-4, but pressure and heat based fusion of the actual hydrogen creates different elements, and the hydrogen turns into noble, which turns into oxygen, which fuses into carbon dioxide, which is kinda unrealistic, since carbon dioxide is not an element, but is instead a molecule and I just realized that I just nerded out there for a dozen lines.
I like how this is a "fusion-based fusion bomb". Most "fusion bombs" don't do that anymore.