Aimbot Example #183(player)

local player = game.Players.LocalPlayer
local character = player.Character
local localroot = character:WaitForChild("HumanoidRootPart")

local function closest()
    local range = math.huge
    local target = nil
    for _, v in pairs(game.Players:GetPlayers()) do
        if v ~= player and v.Character then
            local JN = v.Character:FindFirstChild("HumanoidRootPart")
            local vhum = v.Character:FindFirstChildOfClass("Humanoid")
            if JN and vhum and vhum.Health > 0 then
                local dist = (localroot.Position - JN.Position).magnitude
                if dist < range then
                    range = dist
                    target = JN
                end
            end
        end
    end
    return target
end

local Cam = workspace.CurrentCamera
local function Update()
    local t = closest()
    if t then
        Cam.CFrame = CFrame.new(Cam.CFrame.Position, t.Position)
    end
end

game:GetService("RunService").RenderStepped:Connect(Update)