The heart of the Lancer-class' weapons system is the sophisticated Mk. IV fire control system, which links all the lancer's weapons allowing the pilot to fire all of them with ta single pull of the trigger. Firing the Lancer's weapons requires very little input from the pilot, who can focus on flying the ship while the fire control system does most of the heavy lifting of the targeting of each weapon.

As a maneuver, the pilot may activate or deactivate the Mk. IV FCS. While the system is active, the ship's forward-mounted twin light laser canon's linked quality increases to 4, and it gains the tractor 2 quality, but only this system can be fired.

The Drawback of this system is that all the ships weapons control systems are routed through the FCS, and if the system is knocked offline from damage or ion attacks, all weapon systems also immediately go offline.