First of all, Welcome to the forum! As the mat of fact of your problem (or something;)) I don't think it's easy to make it full functioning like in normal freeplay. It will take lots of work, and patience (oh yes, verry much patience) The thing is, you would have to get all the scripts working, what is a trial and error work (Adjust, Play, Error, Adjust etc , till it works) If you're new to the game, i would not change the scripts, because it is the most harded bit of modding,. I would ask a expert in scripting to adjust the scripts so they work 100 % in Multiplayer.