FireAllClients only firing to one client?

I have an Intermission GUI that is activated through a remote event, I used FireAllClients but can't seem to figure out why it's only firing one client. (See image below)

https://imgur.com/a/aBk0vni

Server:

-- Variables --

local rep = game:GetService("ReplicatedStorage")
local water = workspace.Water

local tp = workspace.TeleportPart
local tp2 = workspace.TeleportPart2

local intermission = rep:WaitForChild("Intermission")
local timer = rep:WaitForChild("Timer")

local obby = rep:WaitForChild("Obby")
local map = rep:WaitForChild("LaserTag")

local TweenService = game:GetService("TweenService")
local part = water

local players = game:GetService("Players")

local player = players:GetChildren()
local playercheck = rep:WaitForChild("PlayerCheck")

local Teleport = rep:WaitForChild("TP")
local Teleport2 = rep:WaitForChild("TP2")

local sword = rep:WaitForChild("Sword")

local laser = rep:WaitForChild("Laser")
local minimumPlayers = 1

----------------


-- Tween Service --

local info = TweenInfo.new(
	30,
	Enum.EasingStyle.Sine,
	Enum.EasingDirection.Out,
	0,
	true,
	5
)

local Goals = {
	Size = Vector3.new(91,40,91);
}

local tween = TweenService:Create(part, info, Goals)

-------------------



-- Functions --

function teleportPlayers()
	Teleport:FireAllClients()
end

function teleportPlayers2()
	Teleport2:FireAllClients()
end

function giveLaser()
	for i, v in pairs(game.Players:GetPlayers()) do
		local newLaser = laser:Clone()
		newLaser.Parent = v.Backpack
	end
end

function giveSword()
	for i, v in pairs(game.Players:GetPlayers()) do
		local newSword = sword:Clone()
		newSword.Parent = v.Backpack
	end
end

function removeSword()
	for i, v in pairs(game.Players:GetPlayers()) do
		if v.Backpack.Sword then
			v.Backpack.Sword:Destroy()
		elseif v.Character.Sword then
			v.Character.Sword:Destroy()
		end
	end
end

function removeLaser()
	for i, v in pairs(game.Players:GetPlayers()) do
		if v.Backpack.Laser then
			v.Backpack.Laser:Destroy()
		elseif v.Character.Laser then
			v.Character.Laser:Destroy()
		end
	end
end
---------------


while wait() do
	if #players:GetPlayers() >= minimumPlayers then
		while true do
			local num = math.random(3)
			if num == 1 then
				print("Game chosen: Sword Fight")
				intermission:FireAllClients()
				wait(34)
				timer:FireAllClients()
				teleportPlayers()
				giveSword()
				wait(60)
				removeSword()
			elseif num == 2 then
				print("Game chosen: Flood Escape")
				intermission:FireAllClients()
				local newObby = obby:Clone()
				newObby.Parent = workspace
				newObby:MoveTo(Vector3.new(2.5, 95.7, -9.5))
				wait(34)
				timer:FireAllClients()
				teleportPlayers()
				water.Transparency = 0.3
				water.CanTouch = true
				tween:Play()
				print("Water rising")
				wait(60)
				water.Transparency = 1
				water.CanTouch = false
				water.Size = Vector3.new(91, 1, 92)
				newObby:Destroy()
				teleportPlayers2()
			elseif num == 3 then
				print("Game chosen: Laser Tag")
				intermission:FireAllClients()
				local newmap = map:Clone()
				newmap.Parent = workspace
				newmap:MoveTo(Vector3.new(4.664, 81.7, 2.043))
				wait(32)				
				teleportPlayers()				
				wait(1)	
				giveLaser()
				timer:FireAllClients()
				wait(60)
				removeLaser()
				newmap:Destroy()
			end
			wait(1)
		end
	else
		playercheck:FireAllClients()
	end
end

Client:

local rep = game:GetService("ReplicatedStorage")

local intermission = rep:WaitForChild("Intermission")
local timer = rep:WaitForChild("Timer")

local playercheck = rep:WaitForChild("PlayerCheck")
local players = game:GetService("Players")

local allplayers = players:GetPlayers()
local tp = rep:WaitForChild("TP")

local tp2 = rep:WaitForChild("TP2")
local player = game.Players.LocalPlayer

timer.OnClientEvent:Connect(function()
	for count = 60, 0, -1 do
		script.Parent.Text = count
		wait(1)
	end
end)

intermission.OnClientEvent:Connect(function()
	for count = 30, 0, -1 do
		script.Parent.Text = "Intermission: "..count
		wait(1)
	end
end)

playercheck.OnClientEvent:Connect(function()
	script.Parent.Text = "Not enough players"
end)

tp2.OnClientEvent:Connect(function()
	for_, players = pairs(game.Players:GetChildren()) do
		player.Character.HumanoidRootPart.CFrame = workspace.TeleportPart2.CFrame
	end
end)

tp.OnClientEvent:Connect(function()
	for_, players = pairs(game.Players:GetChildren()) do
		player.Character.HumanoidRootPart.CFrame = workspace.TeleportPart.CFrame
	end
end)

Thanks in advance, Scryptio.