When you’re cornered and outnumbered by the biggest, meanest fiends in the gaming world, there’s only one thing that can give you enough courage to spit in their face – a shotgun. Research shows that wielding a shotgun can have the same effect of ten adrenaline-filled injections. With a shotgun in your hand you turn into a crazed killer with nothing but blood on your mind and shotgun shells in your enemies' faces. Here's a list of the top 5 bloodlust-inducing shotguns that have made a mark in the world of killing sprees.
Clark 15B – Battlefield 2142
Whether it’s defending a Titan, or some close-quarter ground combat, a skilled Clark 15B user can dispose of a squad of even the most elite soldiers within seconds. An often misunderstood weapon, the Clark 15B is lethal even in medium ranges. The fact that it packs seven shells per magazine gives you enough time to blaze around your enemy like crazy while you dodge bullets and pump them with lead.
The Clark is the last unlock in one of the two trees of the Support Class in Battlefield 2142. The gun is ignored by many who think it's rather useless. They're mistaken. The gun has an excellent re-fire rate for a shotgun, which allows you to literally dive into a group of enemies and go trigger happy on them.
Now there should be an article on most innovative weapons if it still hasn't been written 
