Kane & Lynch: Dead Men
44 Achievements
1,000
60-80h
Xbox 360
Behemoth
Stop the roaring beast.
20
How to unlock the Behemoth achievement in Kane & Lynch: Dead Men - Definitive Guide
This story-based Achievement is unlocked at the end of Chapter Seven, when Kane must protect Jenny from the giant dump truck.
After the truck passes over you, take out the gunners on the back, then jump out of the hold and immediately run after it and up the hill. As it is backing up to make another pass, unload everything you have at the driver's side window until it shatters and you can get the headshot on the driver. With an assault rifle, you should be able to pull this off before it makes it back down the hill, even on Codeine (medium) difficulty.
After the truck passes over you, take out the gunners on the back, then jump out of the hold and immediately run after it and up the hill. As it is backing up to make another pass, unload everything you have at the driver's side window until it shatters and you can get the headshot on the driver. With an assault rifle, you should be able to pull this off before it makes it back down the hill, even on Codeine (medium) difficulty.
Below is a video showing how to kill the driver (Behemoth fight starts at 7:10).