How to use the "until" for game rounds?

I asked a similar question but I wasn't very specific. I made a game that picks random maps, picks random players for different teams **and has a LOBBY** to teleport to. I have 3 different teams with different colors. Each round lasts for 2 minutes or 120 seconds. I want to put the UNTIL around line 49 trying to say that the game ends early because of a player or players in a team dies. (The map vanishes back to Lighting and all players teleport to the lobby as shown in line 4)

team1 = CFrame.new(34.6, 3.09, 23.6)--change to where team1 spawns(red team) Note: use Vector3 cordinates
team2 = CFrame.new(32, 3.09, -26.6)--change to where team2 spawns(blue team)
team3 = CFrame.new(18.2, 0.59, 8.8)-- change to where team3 spawns
lobby = CFrame.new(48.6, 169.7, -13)-- change the the position of the lobby(where the players go before/after the game)
--weapon = game.Lighting["Sword"]-- change "Sword" to the name of the weapon you want players to have during the game. put the weapon in Lighting.if you want no weapons then remove this line.
Maps = {"Map1","Map2","Map3"}-- change Map1,Map2,Map3 to the name of your maps and put them in Lighting. you can add more just add: ,"another map" after Map3 and so on.
random = Maps[math.random(1,#Maps)] 

while true do 
wait(30)-- how long between games.
script.map.Value = random
local m = Instance.new("Message")
m.Parent = game.Workspace
m.Text = ""
wait(5)
m.Text = random..""
wait(4)
g = game.Lighting[script.map.Value]:Clone()
g.Parent = game.Workspace
g:MakeJoints()
m.Text = "Game starting"
wait(3)
m:remove()
--d = weapon:Clone()
--c = weapon:Clone()
local pplz = game.Players:GetChildren()
for i = 1,#pplz do 
if pplz[i].TeamColor == BrickColor.new("Bright red") and pplz[i] ~= nil and pplz[i].Character:FindFirstChild("Torso") ~= nil then-- change to team1's TeamColor
--c.Parent = pplz[i].StarterGear
--d.Parent = pplz[i].Backpack
pplz[i].Character.Torso.CFrame = team1
--d = weapon:Clone()
--c = weapon:Clone()
elseif pplz[i].TeamColor == BrickColor.new("Deep blue") and  pplz[i] ~= nil and pplz[i].Character:FindFirstChild("Torso") ~= nil then--change to team2's TeamColor
pplz[i].Character.Torso.CFrame = team2
--d.Parent = pplz[i].Backpack
--c.Parent = pplz[i].StarterGear
elseif pplz[i].TeamColor == BrickColor.new("Pastel violet") and  pplz[i] ~= nil and pplz[i].Character:FindFirstChild("Torso") ~= nil then--change to team3's TeamColor
pplz[i].Character.Torso.CFrame = team3
--d.Parent = pplz[i].Backpack
--c.Parent = pplz[i].StarterGear
end end 
wait(120)-- how long each game lasts.
local pplz = game.Players:GetChildren()
for i = 1,#pplz do
if pplz[i] ~= nil and pplz[i].Character:FindFirstChild("Torso") ~= nil then 
--local clean1 = pplz[i].StarterGear:GetChildren()
--clean1[i]:remove()
--local clean2 = pplz[i].Backpack:GetChildren()
--clean2[i]:remove()
pplz[i].Character.Torso.CFrame = lobby
end end

local m = Instance.new("Message")
m.Parent = game.Workspace
m.Text = ""
wait(4)
game.Workspace[script.map.Value]:remove()
--m.Text = winner.." has won!"
m:remove()
end