Make sure Mako is appropriately geared for your level Use stims, medipacks Hit Tyresius with a Concussion Missile at the beginning of the fight so you're only fighting the droid at first With Tyresius out of the fight, make sure not to use any AoEs that will end your CC Don't forget to pop Heroic Moment: On the Trail if needed (20 min. CD) When in doubt, bring a friend - no shame in sharing the kill!

JC speaks the truth.

The PvP Debuff in question is called Trauma. As soon as you are put into combat in a WZ, you have this debuff. All healing done to these targets is reduced in effectiveness by 30%, if I remember correctly.