Far Cry 3 Classic Edition
43 Achievements
1,000
20-25h
Love the Boom
Kill 4 enemies simultaneously with one explosion.
20
20.44%
How to unlock the Love the Boom achievement in Far Cry 3 Classic Edition - Definitive Guide
Edit* make sure to let the enemies get out of the vehicle once it stops in order for the achievement to count.
When the reinforcements come, blow up the car they're coming in before they exit the car.
Often the cars have 4 people in them.
This can be unlocked with any weapon or equipment that gives of an explosion, so don't be nailed down by one thing. Personally the best is the RPG-7 which can be found at any store under the Launchers menu or obtained for free by unlocking Radio Towers. Now for the best chance at getting this, head to any un-liberated Outpost. Once you arrive, make sure you get caught and the enemy NPCs set off the alarm. Now wait out the battle until the reinforcements arrive. Keep an eye on the map of the location they're coming in from and wait there. Once they arrive, it'll be a convoy of 2 vehicles and it's the second one you're going to want to shoot with your RPG-7.
If you get the hit, the vehicle holds 4 enemy NPCs and the they'll all die and the achievement will unlock.