How would I got about adding teams to this script?

Ive been working on this script for about a day now and I have never worked with teams before and I was wondering if anyone could help me out a little bit. I kinda wanted to have 5 players on each team and when lets say someone on red team died it would give blue team 1 point and when one team reached 50 points it would end the game and give the people on blue team cash or something.

Heres the script ive gotten so far, this is my last wall that I have to get over... Other than data saving. Anyone care to help me out :)

I was thinking it would go before "Game time" starts.

local replicatedstorage = game:GetService("ReplicatedStorage")
local status = replicatedstorage:WaitForChild("InfoValue")
local mapstorage = game.Workspace:WaitForChild("MapStorage")
local serverstorage = game:GetService("ServerStorage")

local intTime = 5
local MapLoadTime = 3
local GameTime = 5
local RoundOver = 3

while true do
    -- Waiting for players to join
    while game.Players.NumPlayers < 2 do
        status.Value = "Waiting For Players!" 
        repeat wait(2) until game.Players.NumPlayers >= 2
    end

    -- Intermission
    for i = intTime, 0, -1 do
        status.Value = "Intermission: "..i
        wait(1)
    end

    -- Loading a map
    local mapsinserverstorage = game:GetService("ServerStorage").Maps:GetChildren()
    status.Value = "Loading Map..."
    wait(MapLoadTime) -- Map loading time
    status.Value = "Map Loaded!"
    wait(1) -- Map loaded time
    local chosemap = mapsinserverstorage[math.random(1, #mapsinserverstorage)]
    chosemap:Clone().Parent = mapstorage

    -- Teleporting players
    status.Value = "Pick Your Class!"
    local spawns = chosemap:WaitForChild("Spawns"):GetChildren()
    for _, player in pairs(game.Players:GetPlayers()) do
        if player and #spawns > 0 then
            local uppertorso = player.Character:WaitForChild("UpperTorso")
            local allspawns = math.random(1, #spawns)
            local randomspawn = spawns[allspawns]
            if randomspawn and uppertorso then
                table.remove(spawns, allspawns)
                uppertorso.CFrame = CFrame.new(randomspawn.Position + Vector3.new(0, 3, 0))
                local classgui = game.StarterGui:FindFirstChild("ClassGUI"):Clone()
                classgui.Enabled = true
                classgui.Parent = player.PlayerGui
                wait(10)
                player.PlayerGui:FindFirstChild("ClassGUI"):Destroy()
            end
        end
    end
    -- Game time
    for i = GameTime, 0, -1 do
        status.Value = i.." Time Left!"
        if i == 0 then
            status.Value = "Round Over!"
            wait(RoundOver)
            -- Give players points
            for _, player in pairs(game.Players:GetPlayers()) do
                if player:FindFirstChild("leaderstats") then
                    player.leaderstats.Presents.Value = player.leaderstats.Presents.Value + 5

                end
            end
            break
        else
        end
        wait(1)
    end
    mapstorage:ClearAllChildren()
    wait()  
end

Thanks for your time. Even a YouTube tutorial would help.