Here is the full list of all 50 Jagged Alliance 3 achievements.
Obtained the Green Diamond.
Found Lucky Veinard's secret treasures.
Conquered an Outpost without using firearms.
Finished the campaign before 1 MAY, 2001.
Finished the campaign while having no more than one hired merc at the same time.
Finished the campaign while having no more than two hired mercs at the same time.
Have a Level 10 merc.
Helped Larry overcome his addiction.
Finished the campaign without a single merc dying or getting downed.
Gathered enough evidence to clear your name.
Hired the Major.
Killed 7 enemies in one sector without triggering combat.
Taken 300 damage in a single turn without any merc dying or getting downed.
Solved the Diesel problem.
Controlled all sectors with mines.
Moved a merc 35 tiles away in a single turn.
Dealt 1000 damage to enemies in one turn.
Killed an enemy at extreme range.
Defeated all fighters in the Night Club.
Caught the Teddy Bear killer.
Made 10 critical hits in one turn.
Killed 10 enemies in a single turn.
Found a cure for the Red Rabies.
Earned at least 75 Loyalty in 5 towns.
Found Madam Lecoq's diamond necklace.
Controlled 5 sectors with an Outpost.
Hired Gus.
Hired a Legendary merc.
Defended a sector with the help of militia without autoresolve.
Did three morally bad things.
Controlled at least 50 sectors.
Have at least 12 hired mercs.
Installed 7 mods on a single weapon.
Conquered an Outpost without losing HP.
Made Maman and Chimurenga get together.
Ambushed a diamond shipment and got the case.
Killed an enemy with a shot through an obstacle.
Chose a Psycho dialogue option 5 times.
Killed two enemies with a single shot.
Killed 5 enemies in one turn with a single merc.
Made 10 overwatch shots in one turn.
Killed an enemy with 5 different weapon types.
Killed 25 enemies with a headshot.
Hurt your own merc with the bullet that killed an enemy.
Reduced all defense shields of an Outpost.
Chicken murderer.
Created an I.M.P. merc.
Finished the game on the highest difficulty settings: “Mission Impossible”, “Dead is Dead”, “To The Bitter End”, “Lethal Weapons” and no “Forgiving Mode”.
Finished the campaign without killing any civilian.