Comment by ninjagoo

> I doubt it, as D_A's target is stationary (and could be reduced to GPS coords) while D_B's target is moving.

It's a good point, though I should point out that GPS denial is assumed in those sort of contexts as a first countermeasure so D_A likely has alternative targeting, and that smaller drones can move faster with less energy storage, which itself requires less weight, compounding the benefits of being smaller.