Today is March 22, 2013. I just tried Retribution 3 times with my level 61 Asura engineer and failed. I completed this personal quest with my guardian back in January 2013 with little problem. All three tries were going ok until the courtyard. At the beginning of the courtyard fight the undeads were level 59, but it did not take long before they were all replaced by level 61 undeads. Yes, the two level 61 veteran undeads were there and one of them kept summoning level 61 undeads, non-stop. My support npcs, the Tenstrikes mercs, all went down pretty fast, probably because two of them, the Asura and the Sylvari, were just standing around and did not fight, even when the undeads were pounding on them. Simple math why the current set up does not work: your reinforcement npcs are level 59 and they come in one at a time while the undeads are level 61 and they come in three at a time. Whoever claims this is fixed is not correct.