I thought it was broken.
It is triggered differently than I thought. After toying with it a bit, it seems to make sense to me.
There are TWO different actions the cab has on your launched drones, and they’re triggered differently from one another.
To make your drones target a specific enemy, launch the drone with the trigger for said drone.
Point your mouse at the intended target.
Fire the trigger for that drone again.
To make the cab increase the damage from your drones, hit the trigger for the cab.
They can be triggered completely independently from one another.
Now, to go attempt to build that drone-boat I was imagining.