How to fix a round script that teleports a player to a map then back?

You can do something like put a bunch of bricks in a folder in the map and move them around to where you'd want players to spawn. Name the folder spawns, then loop through players and teleport them to one of those randomly. With this, you wouldn't need to do anything when the players die, as they'll re-spawn back to the only roblox spawn locations that should be in the game, which are in the lobby.

local replicatedstorage = game:GetService("ReplicatedStorage")
local status = replicatedstorage:WaitForChild("StatusValue")

while true do
    -- Intermission
    for i = 15,0,-1 do
        status.Value = "Intermission: "..i
        wait(1)
    end
    status.Value = "Game in progress.."
    local map = game.ServerStorage.RockyLands
    local cloned = map:Clone()
    local spawns = cloned['spawns']:GetChildren()
    cloned.Parent = game.Workspace

    for i,v in pairs(game.Players:GetPlayers()) do 
        local rand = spawns[math.random(#spawns)]
        if v.Character then 
            v.Character:MoveTo(rand.Position)
        end
    end

    wait(15)
    for i,v in pairs(game.Players:GetPlayers()) do 
        if v.Character then 
            v:LoadCharacter()
        end
    end
    cloned:Destroy()
    status.Value = "Round over!"
end