Idea for a scoring system that tracks your karma (i.e. another column in the scoring matrix) with the value either being added at the end of the game or during the game:
- -10 for nuclear first strike against any opponent (thus one can accumulate multiple -10's). If the game permits to hide the fact that player X has made a first strike against player Y (can you do that?), complete scoring will have to wait until the end of the game.
-1 for any nuke sent into direction of a civilian target, even if it does not arrive. However, disarming or rerouting (in case of bombers) means absolution.
0 for any nuke sent into direction of a military target.