Alrighty, I was looking in the settings and I couldn't find how to blacklist all mods from joining. I already made it so you can't launch with a modded item. But my friends are using other stuff. Like Vessel Mover. And they can exploit that cause it adds scripts, not parts. Also they can still manipulate vanilla/stock cheats. Mod+F12 is still BUILT into the game, and they're abusing that too.