1. Droid PositionGravity Hook Four, inside a western part of big middle structure.
2. Droid PositionPerekta Mesa, on the top of the metal “bridge” at Southwestern part.
3. Droid PositionCartel Mining Mesa, Eastern part, at the “first” level of a huge structure.
4. Droid PositionFrinn Mesa, Northwestern part, at the east wall of tall boulder, with a radar on the top.
5. Droid PositionTelemur Mesa, Southern part, near the widest part of waterfall.
6. Droid PositionSolida Hesk’s Estate, Northern part, at the top of the statue in the distance.
Source: Official MCR-99 droid locations (hidden planetary achievements), MCR-99 Droid Locations post 2.0 on Swtor official Forums. We would like to thank SWTOR community members for all additional information.