[Hiralis]

Well this is the good thing about halo custom edition. If you make a mod to a map including the weapons you can't play on a server of a map with the same name but different config.
example, if you mod the bloodgulch shotgun to shoot FRG projectiles, save it, compile it and then try to play on an internet server with bloodgulch, it will say "Unable to join game" or it will go to gathering exception data.