Tau Rail Rifle from Warhammer 40K and Firewarrior (PS2)
SDF-1 Rail Cannons from Robotech Macross Saga
The idea of high-technology, like portals to distant worlds, FTL warships, coupled with low-technology, like current human technology was one of the ascept about the Stargate universe that always fanastianed me. No where can that be seen more clearly than when than the very advanced Earth Daedelus-class warships that was fitted with advanced Asguard energy shielding and FTL drives, but it used current human weaponry, like nukes and Railguns. I have issues with the way that the show projected the Railgun. Unlike HALO or even 1988's Earth Star Voyager, the Railguns on the Daedalus are rapid-fire, and have little effect on the enemy vessels. Even with energy shielding, Railguns would possess a serious threat, and Atlantis just dropped the ball. I could see a connection between the Mass Drivers in the Wing Commander universe and the Atlantis ship-based Railguns.