Orbital Artillery strikes from ships in current orbit! Still in beta testing but should work:
-Artillery shells are rocketed to space (cannot be made in space) and is reduced to 5 per rocket,
-Orbital strikes capabilities are unlocked after cryogenic science, (all normal artillery functions are left the same)
-Holding shift will allow the remote manual artillery shell from a loaded artillery in a current orbit on the visible map (beyond artillery range)
-How powerful this is being tested (late game i don't mind the fun of it, but early game this is obviously too powerful)

Artillery Damage tech works fine with the barrage,
Artillery Shooting speed reduces the delay between barrages and the delay for the barrage to hit its target (min 2 seconds)
Artillery Radius tech increases the number on orbiting artillery guns that can unload its payload for each barrage and its radius of effect. The radius of effect is dynamic to the amount of available and capable artillery so that small ships are more accurate, bigger ships have more radius)

I think is more for the fun of having a battle cruiser fly passed and rain terror on some biters :)
Updated for 2.1 also

This was made mostly using AI as it was more complicated than my little tweak mods, I am happy for anyone to use this in their mods, or improve it if you are a better modder.