I punched the button on my chest and went into rapid descent. The height of every Slab level is a standard two hundred metres. Experience has taught SWAT over the years that to have a reasonable chance of taking down a group of armed suspects you had to cover the distance in under three seconds. In practice this means a dizzying 110kph fall to the floor followed by a jarring, just soft enough not to dislocate your lumbar vertebrae, deceleration. I juddered to a halt five feet above a perimeter guard with an Ingram 5mm under his jacket. He was just starting to glance up when the tazer dart smacked into his cheekbone. I hit the quick release and landed astride his twitching body, looking round to see Joe choking another guard unconscious, meaty arms wrapped tight around his neck and mouth u

