Bit of free advice should anyone in charge be listening 😀 (they are not of course)
Have a couple of drones swarming the area you bomb. Once the big one has exploded, people tend to panic and/or be in disarray. And when humans are in that condition, they tend to 'clump' together and not pay attention to protocols and safety guidelines. That's when the mop-up drones come in and take groups of soldiers out by attacking these stressed out groups.
You're welcome.