Gmod murder zVision

hook.Add( "PreDrawHalos", "zVision", function()
    local gm = gmod.GetGamemode()
    if gm != "murder" then return end
    local murderer = GAMEMODE:GetAmMurderer()
    local numLive = numLive or {}
    local LiveTbl = LiveTbl or {}
    for k, v in ipairs(team.GetPlayers(2)) do
        if v:Alive() then
            table.insert(numLive, v)
            table.insert(LiveTbl, v)
        end
    end
    if murderer then
        if #numLive <= 4 then
            /*
            replace this number with however many people you want to be left alive to show positions, the murderer counts as being alive, so add 1 to this value. For example, if you want the last 3 players alive to show up through walls, make the value 4
            */
        halo.Add( LiveTbl, Color( 255, 165, 0 ), 0, 0, 2, true, true )
        end
    end
end)
//Made by Zero, with help from Fafy