Help with unlocking zone master achievement


I havr obtained all the other achievements but the achievement tracker is stuck on 94% for the zone master achievement. not sure hoe to proceed, or if anyone else has had the same problem.

This game however is still awesome, cant wait for the dlc too. One of the best of its type.
Any help welcome

The point with achivements is to achieve them.

If I tell you what to do…you dont achieve it. Kinda ruins it.
I wouldnt want anyone doing that to me.