C.H.A.D. said:
How do you miss with a beam anyway? I'm much more accurate with a flashlight than I am with a rifle (and I'm a pretty good shot).
Ok some counters:
1) As has been noted on many many occasions a roll to hit in ACTA is more than just a roll to hit the target ship, its a roll to hit it in a place that can potentially cause damage (ie not merely bouncing off armour).
2) The speed of light argument: 1) Not all beams are lasers. Particle beams, as high as their speed is, do NOT travel at light speed. Nor do lighting bolts, or Neutron beams. Ok so their speed is still VERY fast but over space combat ranges even if were not talking stupily long ranges it can still be tricky to hit a target that is not only moving but actively changing course erratically and attempting to avoid being shot.
3) Targeting systems for advance weapons at ranges like that are not just a matter of 'pointing them at the target and firing' you have to detect the enemy ship, lock it with your sensors, and plot a firing solution, the enemy is no doubt trying to jam your sensors and so on.
4) How do you dodge half a beam?: If theres a big stream of energy pouring into your ship and you move out of the way faster than the beam weapons tracking system can follow, then there you go. Youve dodge part of the beam.
And for the record:
1) Space is not empty, there are dust particles, micrometeors, gas pockets, general space junk etc. Especially near inhabited systems where battles would be likely. After all, who wants to fight for wide empty space?
2) Light IS affected by gravity. Not as much as a bullet granted but it still is and that can actually have a small effect on targeting at spacial ranges near a large gravity source like, say, a planet. Slower moving things like particle beams even more so.
3) If its so easy, go take flashlight, and hit a moving car on a freeway from 5 miles away WHEN YOU SWITCH IT ON. Not switch it on and then adjust your aim, aim first. Beams weapons dont have unlimited energy, and cant fire forever! Even if the flashlight wasnt a wide beam its still no mean feat!
EDIT: Im making a point here, please dont anyone actually go shining flashlights at moving cars as your liable to cause an accident and get arrested.