For the breaches weapon. "The final attack rolls for this weapon can never be affected by Accuracy"
Final implies the last attack roll. But rolls implies multiple attack roles?
Is the intent for the final attack roll not to be effected by accuracy, or all attack rolls that are not the first?
If the later I would suggest "Only the first attack roll for this weapon can be affected by Accuracy"
This is only a real issue because of Painmaker. Else the wording wouldn't really matter.
Viewing post in Lancer: NPCs Rebaked comments
The Breacher shotguns work on inverse Shatterhead Colony Missile rules, and borrow wording from that weapon. What it means is no matter how many Accuracy you throw at the Breacher, the shotguns (any roll) can never benefit from positive Accuracy. You can use Accuracy to cancel out Difficulty, but no attack roll with that weapon can benefit from Accuracy beyond that. I probably won't be changing the wording on this given, as noted, the same wording for the intended effect exists elsewhere in the game.