The Mech Land Assault Add-on for Just Cause 3 has 6 achievements worth 190 gamerscore.
Achievements they've won
Achievements they've not won
Hijack your first Mech.
Beat the last mission of the Mech Land Assault Expansion and complete the story arc.
Earn at least 1 Gear in all Challenges of the Mech Land Assault Expansion.
Earn 5 Gears in all Challenges of the Mech Land Assault Expansion.
Liberate 3 Detention Camps.
Destroy 30 enemy vehicles using the Mech's Force Pulse.