Attribute weapons to a country

[Herastean]

Hello, I'm currently learning how to use DWedit for I'd like to make some "unrealistic" changes and its faster done by myself than beg somebody for it!

So far I could modify the weapons and subs stats but I find a hard time knowing if it'll be possible to put BLUFOR/OPFOR weapons on my sub. If I want to take Exocets & SHKVALL onboard, is it possible? If yes, how can I do that?

I'd also like to know if it'll be possible for me to change the Imperial system to a Metric system for the US subs?

Thank you!