Melkor gets his shot off first, missing the drone.
train fires shortly after, also missing.
The drone stays on Melkor, firing again and hitting his left hand for minor damage.
Melkor fires back, hitting the drone, but not disabling it.
train shoots again, but continues to miss.
The drone fires again at Melkor, but misses wildly.
Melkor fires again and hits squarely, blasting the drone into pieces that fall sharply to the floor.