Although I am 100% in support of Tactical Nukes against Military Targets, I say no to Biological or Chemical Agents.Profane animals, deep in the mountain need to breathe to build nukes.............Food and supplies need to be brought regularly to the vast army of IRGC hiding in the tunnels. Sneak in the sarin gas in the bananas
Level the exterior of the mountain, with conventional bombs, but first cover it with sarin gas.
The USA has used nukes; but never Bio or Chemical. Germany or Japan could certainly have used Chemical - even they refrained.
I'm not sure Bio was advanced enough during WWII, but right now at least China is making vast strides.
Their ultimate goal is pathogens that target specific genetic groups, and not others. Ideally they would spread it around, and suddenly the only living humans would be Chinese.
But when you consider Hybrids, which many of us are, the results may be unpredictable.