I think a serious contender for future battlefield tech is the remotely guided kinetic energy weapon. Dirt cheap, deployable individually or
in swarms and clusters of up to thousands if set to area removal mode,
and, being kinetic in nature, HIGHLY reliable without any potential
for causing post-battle casualties. (Unless you pick up the leftovers of one and then drop it on your foot!)
Deployment would be simple in principle: Either launch them from an orbital platform or deliver them from a missile booster or, in some cases,
drop them like conventional bombs, but at altitudes over 100K at speeds over mach 5. Dump a few hundred of them, and their controllers
take over their targeting from the ground. The bomb truck exits the area and lands to reload another batch.
No warhead needed. Rocket motor for velocity increase optional and not usually required.
When you slam a hundred kilos of steel into a hardened target at something in the range of 2 miles per second, shit tends to vaporize,
disappear, and, if slightly farther away, explode.
CJ