The most complicated weapon available to a marine. It has an impressive 500 round ammo pool to draw from the 500 round drum magazine. It also has an optical infrared sensor allowing great visibility in low-light conditions, deals a good amount of damage per bullet with full auto capabilities. The coup de grace being that due to the gun's toggle-able complex targeting algorithms each bullet will not hit any fellow marine due to the enabled IFF tracking. This allows a Smartgun operator to fire freely through a group of marines without fear of hitting them. The Smartgun requires a special harness to lift.
To reload the smartgun you must first open the top cover by clicking the ALT key on your keyboard while clicking on the smartgun and then replacing the magazine. You must then close the cover to be able to shoot it again.
Very few marines have training in the M56 Smartgun system. Among them are you, the Commanding Officer, and the Corporate Smartgunners.