I dunno ... sharing frequently, never taking more than you give ... could be describing some kind of firefight ;)
That would be in contrast to the blessing, not the license.
It wouldn't be in contrast to anything. Destroying a guided missile is probably an act of self defence, hence likely to be considered good by the author.
No. A "guided missile destroyer" is a type of ship that sends out guided missiles to hit targets, not the other way around.
If you are building a guided missle or the destroyer it launches from, you are doing so because you believe it to be good and not evil to have a strong military defense. And the best defense is a good offense or something like that, I don't really follow sports.