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