How to make a Atom / Hydrogen bomb explosive simulation?

There are incredible few tutorials out there that cover this subject. The best one i found was this one: by IREDESIUM
The tutorial it self are very difficult to follow, but the end result are not bad, but there are elements that is not good. When looking at reference videos of real atom explosion, they have this mushroom looking cloud / smoke. The smoke in iredesiums tutorial are not good, does anyone of you out there know hoe to make that kind of cloud / smoke ?

Hahaha, I really had to read this to veryfy you didn’t post to the wrong forum.
Please consider to edit your title to add “explosion simulation”.

wow my goodness, haha I read my own title right now. :rofl:

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probably a very popular post by terrorist :joy::rofl:

Or some third party who’s parsing websites for gahtering “intelligence”.
But enough of this now.
Let’s hope someone can answer your question.