Twin-Linked If a shooting weapon has the twin-linked special rule, or is described in a model's wargear entry as twin-linked, it re-rolls all failed To Hit rolls.
For a Blast weapon, if the scatter dice does not roll a hit, you can choose to re-roll the dice with a Twin-linked Blast weapon. If you choose to do so, you must re-roll both the 2D6 and the scatter dice.
Twin-linked Template weapons are fired just like a single weapon, but must re-roll failed To Wound rolls and armour penetration rolls.
Monofilament When rolling To Wound for a weapon that has this special rule, use the target's Initiative instead of its Toughness (note that the model's Toughness is still used to determine whether an attack has the Instant Death special rule). In addition, if a 6 is rolled To Wound when attacking with a weapon that has this special rule, the Wound is resolved at AP2 unless the weapon is AP1.