So I was reading through the wiki, and came across this:
http://wiki.roblox.com/index.php?title=Global_function
And I was interested, as it says that it can be called from any script. Is this not the same as a Module Script's function? Or are there differences?
Global Functions are variables that can be used through any script, roblox fully discourages it, since it makes it easiers to exploiters to use your code. Module Functions are different, since they can be only used if you require them, so you could place it at ServerScriptService and you wouldn't have to worry with exploiters.