[Commander G]

I agree with the those that have suggested that space weapons have greatly reduced effectiveness against planets, exception would be seekers which release their energy at impact. Likewise, weapon platforms using non seekers should have reduced firepower shooting out. Consider the atmospheric effect the cause. There should also be modifers based on planet type. Gas Giants should absorb more energy in the atmosphere than Rock. Ice planets could have the least effect, but that would make Ice planets even more pathetic to choose. No atmostphere planets would not have this effect.