The Problem 2

local repWeapon = game.ReplicatedStorage:WaitForChild("MercGun1");
local weapon = repWeapon:Clone();
local viewModel = viewModel;
local camera = camera;

weapon.Parent = viewModel;
viewModel.Parent = camera;

local joint = Instance.new("Motor6D");
joint.C0 = CFrame.new(1, -1.5, -2); -- what I found fit best
joint.Part0 = viewModel.Head;
joint.Part1 = weapon.Handle;
joint.Parent = viewModel.Head;