Stabbing out from other rooftops, four searing stilettos of shimmering light stretched across the skyline of Low Dome, converging on a big water tank set on the roof of the oil refinery. The beams pierced the macroplas effortlessly, shifting slightly in a carefully orchestrated arc. Then the top of the tank came off, the bowed plas dangling from a tow chain. Instantly, armed Guards charged out of the doorway in the roof to surround the tank, while dozens more rapelled down from other locations. Most landed around the container, and a handful landed directly inside, in a real-life strike so perfectly coordinated it could have been a computer simulation.