1. Get a darter UAV backpack and UAV Terminal(Spawn as an UAV Operator)
2. Assemble the darter.
3. Link it to the terminal
4. Take controls of its turret
5. Left click, see that nothing happens.
5. Switch to taking controls of the UAV's flight controls.
6. Toggle the action "Manual Fire" (you can untoggle it, doesn't seem to do anything)
7. Switch to the turret's controls
8. Left click, and see how the red laser symbol appears.