--you will need to hook this up to the rounds script so that all the runners get the players on runners
--you don't have to create a table for each runner because they won't do it to themselves.

local Players = game:GetService("Players")
local ReplicatedStorage = game:GetService("ReplicatedStorage")
local Characters = ReplicatedStorage:FindFirstChild("Characters") or Instance.new("Folder",ReplicatedStorage)
Characters.Name = "Characters"
local CharacterPositionRemote = ReplicatedStorage:FindFirstChild("CharacterPosition") or Instance.new("RemoteEvent",ReplicatedStorage)
CharacterPositionRemote.Name = "CharacterPosition"

local CharacterConnections = {}
local Positions = {}

Players.PlayerAdded:connect(function(player)
    CharacterConnections[player.Name] = player.CharacterAdded:connect(function()
        wait(4)
    local myplayers = {}
    for k,_ in pairs (Positions) do
        table.insert(myplayers,k)
    end
    CharacterPositionRemote:FireAllClients({["Destroy these characters"]=myplayers})
    end)
end)

Players.PlayerRemoving:connect(function(player)
    if CharacterConnections[player] then
        CharacterConnections[player]:disconnect()
        CharacterConnections[player] = nil
    end
    if Players[player.Name]then
        Positions[player.Name]=nil
    end
end)

CharacterPositionRemote.OnServerEvent:connect(function(player,data)
    Positions[player.Name]=data
end)
while true do
    wait()
    CharacterPositionRemote:FireAllClients(Positions)
end