Complex sentence: This is achieved by wielding two fire-arms and intuitively shooting the antagonist likely to cause most harm-users are trained to shoot leathally without using any sights or aiming in the traditional sense.
Split into simpler sentences: This is achieved by wielding two fire-arms and intuitively shooting the antagonist (s) in areas likely to cause most harm. Users are trained to shoot leathally without using any sights or aiming in the traditional sense.