Save will only work on dedicated server. You can download it through steam yourself, or look at server hosting.GLHF

save is not working

No, I won't be doing any of that but you can make some changes in the paramaters, or even hard change them in core\def\param.hpp

If you want to dive deeper yaself check out this git, he is the original mission god
https://github.com/Vdauphin/HeartsAndMinds

Any chance to change the names of the enemy and get rid of some of the more anachronistic missions like hacking or what not?