So part of the joys of World War III - and I use the term 'joys' somewhat loosely, is the fact that... well... it's WORLD WAR III.
...and what good third world war wouldn't be complete without the ability to launch TACTICAL NUCLEAR DEVICES at your opponent?
So, I added it! (SCRIBD version here!) Now be aware that these rules are STUPIDLY broken, you can lose entire armies to these effects, but it's about the story!
In saying that, having this effect occur in one game towards the end of a battle, and then following on with the 'Polluted Environment' that comes after using these 'Quasi-official' rules can make for a very, very interesting narrative campaign!