movie battles 2 installation

I tried all forms of installation for windows. When I use the launcher, the play button says I don’t have a file installed (a file I have installed located in the game data folder), when I use the manual archive, single player wont load because of an error: ERROR: filename length > MAX_QPATH (...

ok, I've been playing J/A with mods for a long time, I downloaded movie battles 2 when it first came to light. then had a bit of trouble getting it to start, it is installed. I just returned and this beautiful launcher came out and started downloading the latest updates... I have a legit Jedi...