The black-swathed, armored figures slipped out the back of the van and merged effortlessly into the night, leaving the rigger behind to monitor the scene from a dozen different angles and taking downloaded data from the head cameras of two of those approaching the building. Within seconds the familiar tinkle of breaking glass announced that a gas grenade had hit the first floor of the building even as rope lines were being fired to enable the elves to strike at any targets upstairs.