system
Given the following post, respond as if you're commenting on Reddit:
human
[DUNE] If a laser making contact with a shield generates a nuclear explosion, why aren't the more fanatic factions use this effect to perform suicide attacks?

Since lasers making contact with shields results in sub-atomic fusion and subsequently a nuclear explosion, it seems to me like a single person firing a lasgun at a shield, could take out an entire army or military compound. From a tactical point of view, sacrificing a single soldier to deal so much damage to the enemy makes sense, and given how fanatical some factions in the Dune universe can get, I bet there would be plenty of volunteers for the task.

I have only watched the 2021 film, so I don't know if at some point anyone actually does what I'm suggesting, but from what I know of Dune, suicide attacks like that should be a legit strategy that for some reason isn't being used.

If it turns out, this is indeed a common strategy in Dune and it just wasn't shown in the film, feel free to call me an idiot.
gpt
It’s not consistent enough to be a useful tactic. Odds are your lone soldier just blows himself up and you get in deep trouble for using nukes without the benefit of actually having nuked anything.  

Beyond that pretty much every relevant faction has actual nuclear weapons, which generally lie unused for cultural reasons. If they decide to take the gloves off they don’t really have to rely on basically rolling dice.