Thanks for the advice on here guys, I was just about to throw my PC out the window... Seems really counter intuitive to me, every other elite I've fought it was easy to nuke them while my companion tanked, sometimes they would go down but they were left with nothing, him on the other hand, well the first time an all out nuke worked on the 5th or 6th try, but then 5 more times going down as he just mezzed my companion and ran at me, pausing just long enough to reapply the mez while they got one ot two hits in, I didn't even think about kiting with pretty much all the sniper skills requiring cover, and with no healer companion to keep you topped up. There should be a warning sign on entry to the ship, warning, skill bump ahead