Metric space ships DO shoot lasers, mostly just for science or communications though. Star Wars space ships shoot turbo blaster, not lasers.

Metric space ships don’t shoot photos torpedo, but they do use photon IMUs. Star wars space ships shoot proton torpedos not photon torpedos (they may or may not use photon IMU for guidance)

now just consider it WWII in space.

Always has been.

Revenge of the Fifth