Here is the full list of all 50 Just Cause 2 achievements. It takes around 50-60 hours to unlock all of the achievements on Windows.
Complete 49 faction missions.
Complete 9 stronghold takeovers.
Assassinate 25 colonels.
Reach 50% completion in the normal mode or mercenary mode.
Collect 1000 resource items.
Collect 150 faction items.
Complete 1000 sabotages.
Kill 30 enemies by mowing them down with vehicles.
Kill 50 enemies in a row with inventory weapons without losing health.
Hijack 50 enemy vehicles.
Base jump 1000 meters.
Get 100 stunt driver points.
Fly an airplane under 30 unique bridges in Panau.
Reach 100% complete in 100 locations.
Complete 10 challenges.
Complete story mission 7.
Bonus for completing the game on normal difficulty.
Bonus for completing the game on hard difficulty. Also gives you the bonus for normal difficulty.
Bonus for completing the game on extreme difficulty. Also gives you the bonus for hard and normal difficulties.
Complete story mission 6.
Travel 75 kilometers by land vehicle.
Kill 20 enemies in 60 seconds.
Kill 30 enemies while they're suspended in the air with the grappling hook.
Fly an airplane close to the ground for 30 seconds.
Kill 50 enemies using melee attacks.
Kill 30 enemies while they're falling through the air.
Complete story mission 5.
Kill 5 enemies by dragging them behind a vehicle with the grappling hook.
Kill 5 enemies with the melee attack while they're suspended with the grappling hook.
Kill 750 enemies.
Stand on foot at the highest point of Panau.
Discover 100 locations.
Kill 30 enemies by using the grappling hook and making them fall to their death.
Complete story mission 4.
Complete story mission 3.
Drive 30 different vehicles.
Complete 100 sabotages.
Kill 50 enemies with headshots.
Open the parachute and then land on foot 300 meters above the starting height.
Reach 100% complete in 15 locations.
Complete 3 stronghold takeovers.
Collect 100 resource items.
Complete story mission 2.
Complete story mission 1.
Destroy 30 objects in 60 seconds.
Cause chaos for the first time.
Complete 50 challenges.
Kill 5 enemies by smashing them with an object tethered to your vehicle with the grappling hook.
Drive all 104 vehicles.
Reach 75% completion in the normal mode or mercenary mode.