Structural Analyser

Use this Tactic at the start of the Shooting phase, if your kill team includes Darkstrider. That model gains the following aura ability until the end of the battle round:
Pick an enemy model visible to Darkstrider. As long as Darkstrider is not shaken, add 1 to wound rolls for shooting attacks made by friendly models within 6" of Darkstrider in the Shooting phase, that target the enemy model you picked.