Red Faction: Armageddon

This achievement can be very easily accomplished with the Assault Rifle, Magnet Gun, Rail Driver, and whatever else you want. Assault Rifle for face-to-face encounters. With the Rail Driver you can hide in a building and wipe out any opposition and the Jamming Devices themselves are easily taken down with the Magnet Gun. This achievement is story based and obvious but i hope this short guide helps.