This group of achievements relate to the five companions originally available to Smuggler characters. There are 145 legacy points spread between 12 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 Corso. These kills count if you recruit the companion during the Knights of the Eternal Throne expansion, or from playing the Smuggler story.
5 Legacy Points | 20 Legacy Points
These achievements are unlocked for killing any combination of 100 and 1,000 enemies with Akaavi. These kills count if you recruit the companion during the Knights of the Eternal Throne expansion, or from playing the Smuggler story.
5 Legacy Points | 20 Legacy Points
These achievements are unlocked for killing any combination of 100 and 1,000 enemies with Bowdaar. These kills count if you recruit the companion during the Knights of the Fallen Empire expansion, or from playing the Smuggler story.
10 Legacy Points
This achievement is unlocked for recruiting Bowdaar on any character from the Alliance Alert Mission, Freedom Fight. You must complete the full Mayhem at the Arena Grand, and the follow up missions to recruit Bowdaar. You can only recruit Bowdaar after recruiting Yuun. The mission needed to complete this is;
Freedom Fight
5 Legacy Points | 20 Legacy Points
These achievements are unlocked for killing any combination of 100 and 1,000 enemies with Guss. These kills count if you recruit the companion during the Knights of the Fallen Empire expansion, or from playing the Smuggler story.
10 Legacy Points
This achievement is unlocked for recruiting Guss on any character from the Alliance Alert Mission, Shining in the Dark. You can only recruit Guss after recruiting Blizz. The mission needed to complete this is;
Shining in the Dark
5 Legacy Points | 20 Legacy Points
These achievements are unlocked for killing any combination of 100 and 1,000 enemies with Risha. These kills count if you recruit the companion during the Knights of the Eternal Throne expansion, or from playing the Smuggler story.