I have noticed something interesting in the quest "The Killing Blow" on Hoth for the Empire.
In the end of that quest, you will fight an elite Talz Champion.
I have noticed that this Talz Champion is hostile to all prior Talz in the zone, so simply leave some of the alive (It is possible to sneak by the ice to leave some alive) and then kite the Talz Champion to them when he spawns, the other Talz will attack him and deal heavy damage to him allowing you to easily finish him off.