Codex Supplement: Ultramarines, Page 75 wrote:Digital Weapons
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When a model with this Relic fights, it can make 1 additional attack using the close combat weapon profile (see the Warhammer 40,000 rulebook). When resolving that attack, if a hit is scored the target suffers 1 mortal wound and the attack sequence ends.
Codex Adeptus Astartes Space Marines Mark 2: Electric Boogaloo, Page 177 wrote:Whirlwind of Rage
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When resolving an attack made with a melee weapon by a model with this tactic in a turn in which that model’s unit made a charge move, was charged or performed a Heroic Intervention, an unmodified hit roll of 6 scores 1 additional hit.
You cannot select this tactic if you have already selected the Duellists tactic.
When I make my attack as per the Digital Weapons relic, and roll a 6 to hit, do I score only the mortal wound (since the "attack sequence ends") or does the additional hit get to roll to wound as normal or does the additional hit cause another mortal wound?