That's never gonna work due to battery size, which dictates maximum flight time.

Static coordinates or well defined target shapes (say you really hate a specific restaurant chain on architectural style) - that might work, if you release a bunch of drones at the same time.

Still, even in the case of the very successful Operation Spiderweb they had issues of getting the containers in place, resulting in some of the bomber bases being spared.

For this to be effective you need the moment of surprise & lot of drones at the same time, all increasing the chance of the whole plot being discovered.

For Spiderweb they even just load the drones in a cavity on top of the containers, so the onside could be inspected - limiting the number of drones per container. They also assembled the drones in country to avoid border inspection.

That was enough to hit some semi-static high value targets l, but definitely not enough to cause wider havoc.