Here is the full list of all 40 Mercenaries 2: World in Flames achievements worth 1,000 gamerscore.
You performed a burnout.
You mastered the Winching Challenge.
You pissed off everyone in Venezuela.
You captured all high value targets.
You completed Mercenaries 2.
You verified all high value targets.
You unlocked all shop items.
You battled for Caracas.
You unlocked all landing zones.
You achieved maximum mood with the Allies.
You achieved maximum Chinese mood.
You verified Carmona.
You achieved maximum Pirate mood.
You verified Blanco.
You used 20 airstrikes in co-op.
You came in first during a co-op race.
You sniped 50 enemy vehicle drivers.
You played with a Mercenaries 2 developer or a player who already had this Achievement.
You destroyed 200 objects from the gunner seat in co-op.
You achieved maximum P.L.A.V. mood.
You recruited Misha.
You completed three races.
You captured all outposts for a single faction.
You successfully completed 10 action hijacks.
You recruited Eva.
You earned $1 billion.
You destroyed 50 objects with a grenade.
You destroyed 50 objects with an RPG launcher.
You completed one of Fiona's challenges.
You destroyed 20 buildings.
You destroyed 50 objects using melee.
You achieved maximum Universal Petroleum mood.
You earned $1 million.
You recruited Ewan.
You acquired the PMC.
You hijacked the tank in the villa.
You got 25 headshots.
You completed "Rescue Carmona."
You experienced co-op.
You completed the tutorial.