One thing that needs addressed is Nuke attacks which ties into the sponging missiles/nukes during wars in this subject. What is the point of having Vital defense system when it only blocks 20% of the time?
I like the missile odds of 50%, but shouldn't the most destructive weapon someone can use to destroy a nations infra be harder to successfully launch? Either beef up the Vital defense system(it is basically worthless) or make Nukes so expensive that it would be damn near impossible to launch multiple during a given war.
Just my opinion.