On party Threat Bar:
-Full filled bar with an A on your class Icon means the target you are attacking is attacking you
-Unfilled bar denotes the disparity of enmity between you and the highest. The number on your class icon shows who is next on the Death List.

On Monster tag List:
-Green = You do not have aggro on that mob
-Yellow = You are about to lose aggro or gain aggro from that mob
-Red = Mob attacking you

On tab targeting:
-Tab targeting works only on mobs visible to your camera vision, meaning if you move your Camera to close range and tunnel vision yourself you have less target to tab to. Which in some cases is a good thing.
-Tab targeting priority is as said first based on camera visibility followed by the Monster Tag list going down from the list.

Also please include in the guide that "Awareness" lvl 34 prevents Critical Heals too, and it usage is situational sometimes close to detrimental.