Stacking/combining mods in the game.
 

So, say combine 2004 mod, Russian Subs (or Russian campaign), HUD options, and/or similar mod preferences.

Anyone have advice for mods that work well together? Working on similar or found mods that conflict based on experience?

I've edited a few files to try to mesh units, weapon configs, sensor settings etc, to see if I can get a myriad of settings/options.

Looking to see what others things. (I realize there is no guarantee and that can cause bugs/undesirable results.) :-)

If neither of the mods in question changes the same file (no 'overwrite existing file?' question), it should work without problems.

If they do, it'll most likely produce bugs of some description unless you merged the files in question first, generally using the merge/diff tool of your choice.