Here is the full list of all 21 Narco Terror achievements.
Earn 15,000 dollars
Upgrade all weapons
Complete a vehicle minigame without getting hit
Find all the collectables
Use all special ammo and weapons
Kill 3,000 enemies in total
Complete any mission without dying
Complete the game on hardcore difficulty
Complete the game on any difficulty
Find 5 collectables
Meet Delgado for the first time
Melee kill 10 enemies
Get to South America
Destroy 5 ground enemies with your aircraft
Play Co-Op mode for 5 minutes
Complete Mission 01
Kill 20 enemies with grenades
Kill 6 enemies with a single grenade
Kill 150 enemies
Upgrade a weapon
Destroy 50 vehicles