I assume that you are refering to the "subquest" from "The House Always Wins"? The trick is to NOT beam up after defeating the Romulans on the ground. You have to return to the room where all of the NPCs are cheering and talk to both Worf and the Master of Ceremonies. You MUST use a Bat'leth or ground skills to beat your opponents. Don't worry about the sheilds on the last combatant. When you use melee, you bypass them. Just don't get too cocky. I completed it without using hypos.