Brother Squads often form the vanguard of a Grey Knights strike force. At the onset of battle, a Grey Knights commander will invariably task one or more Strike Squads with the capture of vital locations and key objectives, deploying them via fixed teleporter to ensure a swift seizure of isolated or inaccessible locations. Once in place, a Strike Squad can lay down a punishing stream of storm bolter and psycannon fire in support of the main assault. Strike Squads are, as a result of their battlefield role, used to holding out until reinforcements can be mustered or a beachhead established. Theirs is often the task of clearing the way for heavier troops or full scale landings, slipping past enemy defenses with greater mobility and a lighter touch when the Grand Masters prefer to show off their ego and L33T Skills with a sledgehammer in a Terminator assault.