Translated from French :
Codex Astartes : If your army contains at least one Gladius Strike Force, you can use each Battle Doctrine (Tactical, Assault, Devastator) one time per game. When a Battle Doctrine is used, all models in your army with the Chapter Tactics special rule that are part of a Gladius Strike Force are affected.
Company Arsenal : If a Gladius Strike Force contains 2 Demi Battle Companies, one led by a Captain, one led by a Chaplain, they make a Battle Company. Any unit with the option to take a Rhino, Razorback, Drop Pod as a Dedicated transport may do so at no additional cost. Upgrades are paid for as usual.