Ok, I tried looking this up but I think rogues if not everyone already has this, if not could you explain or link what you are talking about? I could two weapon fight on the Nautiloid without penalty as soon as I looted a second dagger. Upgraded to a pair of hand axes before I got off the ship. I could use the bonus action for an additional attack and the main 'sneak attack' always rolls for both hands. So when i promoted to thief at level 3 to get a second bonus action I get 4 attacks per round. The ACTION attack which rolls for each hand and then two additional bonus action attacks with offhand.