This group of achievements are associated with the five companions originally available to Sith Inquisitor characters. There are 195 legacy points spread between 13 achievements in 5 subsections. Most of these are relatively easy so long as you play with all your companions throughout the story.
5 Legacy Points | 20 Legacy Points
These achievements are unlocked for killing any combination of 100 and 1,000 enemies with Khem. These kills count if you recruit the companion during the Jedi Under Siege expansion, or from playing the Sith Inquisitor story.
5 Legacy Points | 20 Legacy Points
These achievements are unlocked for killing any combination of 100 and 1,000 enemies with Ashara. These kills count if you recruit the companion during the Knights of the Eternal Throne expansion, or from playing the Sith Inquisitor story.
5 Legacy Points | 20 Legacy Points
These achievements are unlocked for killing any combination of 100 and 1,000 enemies with Andronikos. These kills count if you recruit the companion during the Knights of the Eternal Throne expansion, or from playing the Sith Inquisitor story.
5 Legacy Points | 20 Legacy Points
These achievements are unlocked for killing any combination of 100 and 1,000 enemies with Talos. These kills count if you recruit the companion during the Knights of the Fallen Empire expansion, or from playing the Sith Inquisitor story.
10 Legacy Points
This achievement is unlocked for recruiting Talos on any character from the Alliance Alert Mission, Fighting Power with Knowledge. You can only recruit Talos after recruiting Yunn. . The mission needed to complete this is;
Fighting Power with Knowledge
5 Legacy Points | 20 Legacy Points
These achievements are unlocked for killing any combination of 100 and 1,000 enemies with Xalek. These kills count if you recruit the companion during the Knights of the Fallen Empire expansion, or from playing the Sith Inquisitor story.
10 Legacy Points
This achievement is unlocked for recruiting Xalek on any character from the Alliance Alert Mission, Death Before Dishonor. You can only recruit Xalek after recruiting Yunn. The mission needed to complete this is;
Death Before Dishonor
50 Legacy Points
This is a hidden achievement
This achievement is unlocked for refusing Xalek at the end of Bonds of Duty. Note you must still complete the mission on Ilum before being able to reject Xalek. The mission needed to complete this is;
Death Before Dishonor