The Mech Land Assault Add-on for Just Cause 3 has 6 achievements.
Earn 5 Gears in all Challenges of the Mech Land Assault Expansion.
Destroy 30 enemy vehicles using the Mech's Force Pulse.
Beat the last mission of the Mech Land Assault Expansion and complete the story arc.
Liberate 3 Detention Camps.
Earn at least 1 Gear in all Challenges of the Mech Land Assault Expansion.
Hijack your first Mech.