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