thats a good point, next generation aircraft, such as the f22, will be able to target multiple targets, say an entire wing of fighters, launch a bunch of missiles, and kill them all before they even know you are there.
i think there should be multiple targeting systems. your ship would have a default sensor setting or you could pick a targeting system. you could have a sensor array slot on the loadout screen, and then pick whatever targeting computer you want. it would be nice to have a targeting.tbl to specify diferent targeting schemes. you could for example pick a primative gunnery lead system (my moving reticle idea), a gtva standard targeting system, nebula sensors (wireframe overlay of ships on the hud), advanced gunnery (support for multiple target locks) or alien sensors (vasudan headz scanner).
i say its a good idea.