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Clearly the concept of the minigame settings gui is foreign to this guy. That is pretty much the only way to restrict players to use only what they are given, plus it helps if you DON'T lay out all sorts of weapons in the spawn area (or wherever this was), that way the player is pretty much forced to stick with what they have.
On a side note, Cooldude808090's seems like the kind of host/admin who wants EVERYTHING to go their way, and who wants players to to EXACTLY as they wish, who will ban players for making the slightest mistake or step out of line, you know, a control freak. When it comes to the hosting or administrating of a sever, it helps to be flexible and listen to what his players have to say. It also helps to know how to run your minigames properly.
/support 100%