Railgun

Railguns first appeared in the second tiberium war, as GDI's older weapon systems were beginning to be more refined. As in the tiberium universe natural resources were being transmuted into tiberium slowly. Since this was happening GDI saw the need to use the resources actually aquired by tiberium to use in their weapons, seeing as The Brotherhood of Nod had already weaponized the mixed blessing.

In the tiberium universe railguns have proven themselves as devastatingly powerfull weapons regardless of the platform they are mounted, it is worth noting that railguns do take considerably more resoruces to acquire, so it should be only used in late areas of a mission.

First mounted on the famous GDI Mammoth MK II, and used by Ghostalker, they proved to be incredibly destructive weapons given that the actual platform it was mounted on managed to squeeze of more than a few rounds. More importantly however now in the Third Tiberium War, GDI has mastered railgun technology and has begun equipping the powerful weapon to their Zone troopers and commandos. This increases the threat to any Nod commander as the railguns have considerably better damage than most weapons, which means a lone squad of elite zone troopers could potentially knock a whole armored squadron off, given that the zone troopers have a good commander.