How do I make a completely random map picking system?

In a game, I want to make a script that chooses three maps and puts it in a random order So far this is my script bu the problem is it doesn't make each map in a random order or a random choosing:

local ReplicatedStorage = game:GetService("ReplicatedStorage")
local Intermission = ReplicatedStorage.Stages.Intermission
local Voting = ReplicatedStorage.Stages.Voting
local InGame = ReplicatedStorage.Stages.InGame
local Map1Votes = ReplicatedStorage.MapsChosen.Map1
local Map2Votes = ReplicatedStorage.MapsChosen.Map2
local Map3Votes = ReplicatedStorage.MapsChosen.Map3
local highest = 0
local MapRandomOrder = {Map1Votes.Value, Map2Votes.Value, Map3Votes.Value}

while true do
    wait()
    --//Check
    Intermission.Value = false
    Voting.Value = false
    InGame.Value = false

    --//Main Events
    Intermission.Value = true
    wait(1)
    Intermission.Value = false
    Voting.Value = true
    for _, MapName in pairs(game.ReplicatedStorage.MapsNames:GetChildren()) do
        wait()
        if MapName.MapChosenLastRound.Value == false then
            for _, MapChosen in pairs(game.ReplicatedStorage.MapsChosen:GetChildren()) do
             if MapChosen.Taken.Value == false then
                if MapName.Chosen.Value == false then
                MapChosen.Value = MapName.Value
                MapChosen.Taken.Value = true
                MapName.Chosen.Value = true
                end
            end
        end
    end
end
end