I can appreciate your ideas to create a more realistic game environment. However based on my very limited knowledge of scripting/game engines etc. this is not an idea for a mod. Rather it is a concept idea for a whole new game. I know it has been said repeatedly the game was not designed to be 1st person, even on a high end system. I also think 'advanced game physics' exceeds the current capabilities of this game. I am sure mod creators would agree that the majority of your ideas are simply too complex to be added to this game. Personally I think there are mods out there and ones in development taht bring much needed realism to the game, and it is somewhat unnessecary to go to such lengths to create such a mod. But that being said, maybe you feel capable to undertake such a mod. Anyway that's my two cents. Bon chance