how do i edit files for a new campaign with out...

[PipfunatUT]

messing up the entire game.  I wanna try to mod but I'm worried that i wont be able to play on line...  any help friends?

[Zer_Teron]

Simply move the extracted XMLs to a different folder when you want to play Multi

[Necro]

speaking of which surely there msut be some kind of mod/ folder where u can play mods online...

[DragonShadow]

No, but you can play mods (fairly) if the other person has the same mod.