When all other recourse is deemed insufficient, when the throneworld itself stands square in the path of peril, then are the Adeptus Custodes unleashed. For such crucial theatres of war, where defeat could bring the ruin of Mankind itself, it is our solemn duty to provide these heroes with the very finest weapons and armour that Humanity can provide. To do any less would be foolish, dishonourable and tantamount to heresy of the highest order.