TEXT: The Storm Troopers are the most elite fighting force at the
  Imperial Guard’s disposal. In exceptional circumstances,
  several Storm Trooper squads are required to combine
  forces to strike at a heavily defended, but vital objective.
  The Storm Troopers’ role is not to hold or secure the
  location, but rather it is to eliminate all enemy presence,
  scouring any threat from the position. The casualties
  sustained in these actions are invariably high, only death or
  glory await those who undertake such missions. For the
  Storm Troopers however there is no better way to test their
  skills and no greater honour than to die in battle. 
  The Storm Trooper regiment is one of the few to have a
  permanent pool of Valkyrie Assault Carriers to carry them
  into battle. With the speed of these aircraft to deliver them
  to their mission coordinates, the Storm Troopers take their
  enemy by surprise, smashing through windows and doors
  before the enemy can mount an effective resistance. The
  Valkyries provide covering fire for the Storm Troopers as
  they towards the objective. Without pause or hesitation the
  Storm Troopers sweep through the enemy-held structure,
  cutting down their quarry with efficient bursts of high-
  powered lasfire.
  STORM TROOPER STRIKE FORCE
  POINTS: 150 + MODELS
  SPECIAL RULES:
  Strike Force: All units in the Storm Trooper Strike Force must be
  deployed within 6" of the command craft, or, if coming on
  from reserve, they must enter the table within 6" of the point
  entered by the command craft.
  Strategic Assets: An army that contains a Storm Trooper Strike
  Force automatically gains the Vital Objective strategic asset.
  Storm the Objective: In any turn in which the Storm Troopers
  disembark from their Valkyrie transports, they may shoot, run,
  then shoot again. This second round of shooting may be at a
  different target if you wish. In addition, cover saves taken
  against hits caused from these shooting attacks suffer a -1
  penalty, representing the defenders being caught by surprise.
  Note that this rule only applies to the Storm Troopers, not the
  Valkyie transports.
  FORMATION: 
  3+ ten-man Storm Trooper squads
  3+ Valkyrie Assault Carriers*
  *One Valkyrie must be designated as the Command Craft.
  STORM TROOPER SQUAD
  STORM TROOPER SQUAD
  STORM TROOPER SQUAD
  COMMAND VALKYRIE
  ASSAULT CARRIER
  VALKYRIE ASSAULT 
  CARRIER
  VALKYRIE ASSAULT 
  CARRIER
  
SOURCE: textdata/thevault/Warhammer/40k/1st-8th Editions (Prior)/5th Edition (2008)/Apocalypse Datasheets/40k 5e - Imperial Guard - Storm Trooper Strike Force.pdf