Orca, a North American based company specifically focused on making firearms that could resist the negative effects of liquid, altough they are still unable to fire effectivly underwater, they won't jam or malfunction due to it, various of marines and scuba diving special forces takes an Orca with pride.

The Apex SMG is more similar to a miniature assualt rifle than most common SMGs, mostly in mix of its specially designed rounds with a higher muzzle velocity, offering the stopping power found in a common assualt rifle.