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