I'm having difficulty manually installing mods, I downloaded Invictus from Paradox Mods and unzipped it to "C:\Users\Username\Documents\Paradox Interactive\Imperator\mod\Invictus" but I when I go to the launcher nothing shows up, I've also tried just unzipping the file contents directly to "C:\Users\Username\Documents\Paradox Interactive\Imperator\mod" and in that case the launcher sees the mod but still it isn't being applied once in game. I've been over an hour trying to get this to work and having no luck I'd appreciate if anyone can tell me what I'm doing wrong?