Nearly everything on your list already exists and much is in limited use by the military already. I think you missed the biggest item you missed is good heari

Nearly everything on your list already exists and much is in limited use by the military already. I think you missed the biggest item you missed is good hearing protection and sound suppression. In enclosed spaces all the normal issues with loud noises (i.e. guns and explosives) are massively magnified. In fact, it would be terrible to bring a dog much less a canary into this environment.