Esten:
Wait for the approach.
Esten kneeled on the roof of the factory. He had been able to make his way to the one directly across from the smuggler's base, and managed to get onto its roof. From up here, Esten could look down and see the factory across from them, as well as allowing him to get to it quickly after the distraction had been played.
Heavier than a rifle.
Esten kept looking down the sights, waiting for the next target to go through them.
That one, lock it, wait for it to get near, and fire.
The shot would need to hit the cockpit. Anywhere else and it might not guarantee the ship going down. If the pilots were killed though, there wouldn't be any complications. Esten analyzed the approaching ship as best he could. It was a small civilian model, similiar to the ones he had been in when he first joined Aegis.
Lock achieved, wait until 500 yards.
He could fire now and it'd be done, but he needed to wait until it was closer. He needed it to be on the smuggler's doorstep.
700, 600, 500.
The rockets were locked, and heading straight for the truck's cabin. Evasion was impossible. The rockets and truck were heading almost directly into one another, and given the distance, there wouldn't be a moment to react.
The cabin turned into a fireball when the rocket hit. There were no shields or armour to protect it. It wasn't designed for military use. The truck suddenly veered down and to the left slightly, as it careened into the street below. When it hit it skidded along, sparks shooting out from underneath it as it ground to a halt. By the time it had stopped, it had gone through the fence of the factory to the right of Esten, and had sent many workers scurrying for cover. Everyone was looking around, wondering what had happened to it, but quickly moved further away as it slowly engulfed itself in flames. The truck exploded once more when the fire reached the gas tanks.
Esten hadn't lingered to watch the explosion though. The moment his rocket had been fired, he had already activated his cloak, and was making his way off of the roof, and onto the street below. He headed towards the smuggler's factory as the guards gathered around the entrance, looking down at the wreck. As several workers left their factories to examine the source of it, Esten moved through the crowd, closer to the guards, before activating his cloak once more and slipping through.
Perfect.