I'm not giving up, I've just tracked down where it states what nukes what. It all stems from the coding strategic_nukes="1" That is the type of coding that just cannot be changed at all. As a result, unless you do a full hacking of RoN, to the point where you can make it your own game, there is no real hope. My recommendations for something like a WW2 CTW mod is just make Japan the Russian civ so that it will be able to be hit by nukes.
Is this forum still alive? Are people over here still working on RON T&P projects...... I've started working on RON T&P projects and was interested to have a few hands from the experienced people like you