Censure the Commandant

Achievement: Censure the Commandant (Secret Achievement) 

Find and locate Commandant Jenarian on the planet of Yavin 4. This achievement is obtainable from either faction, travel to the Training Grounds and go to the coordinates X 2399, Y 681. If you are lucky the Commandant will have spawned already in replace of the Revanite Captain. Jenarian is a rare enemy that takes the place of the Revanite Captain, if you don't see him keep killing the regular spawn enemy until he spawns. 

It is recommended that you do this with a group of 2 or more players.

Commandant Jenarian

Training Grounds
Coordinates X 2399, Y 681