Riders of the Rustlands DLC contains a total of 8 tracks as follows:
- Hornet's Nest - Medium - Trials
- Junkyard Funk - Medium - Trials
- Rags to Riches - Medium - Trials
-
Gone to Waste - Hard - Trials-
Whiteout - Hard - Trials-
Devil's Beak - Extreme - Trials- The Gauntlet - Medium - FMX
- Laws of Motion - Medium - Skill Game
All 8 will need to be completed, with any rating, in order to unlock the achievement. I have included replays of the Hard/Extreme tracks which are hyperlinked above (click the track name), or you can see the videos
HERE.
If you've been able to complete Inferno IV, you should be able to complete these tracks quite easily, although new riders may need a considerable amount of practice in order to complete them. As always, practice makes perfect. Just take your time learning the bike physics and how they change your bike movement in order to complete obstacles more easily.