This AI script won't work when i change the parent, any help?

So, im making an item placement system, and i am moving a model from the replicatedstorage to the workspace, but for some reason, the script stops working.

AI Code:

local firerate = 0.225--in seconds
local damage = 1

wait(1)

--gunfire
if script.Parent.Parent == workspace then
while true do
    wait(firerate)
local a = workspace:WaitForChild("Normal")
script.Gunshot:Play()
a:Remove()

end
end

Movement Code:

wait(0.01)
--Variables
local a = game.ReplicatedStorage.MachineGunner


--MainScript
c = game.Workspace.Course.Scenery.Placement1.TowerPlace
c.MouseClick:Connect(function()
game.ReplicatedStorage.MachineGunner.Parent = workspace
local b = game.Workspace.MachineGunner
b:SetPrimaryPartCFrame(CFrame.new(workspace.Course.Scenery.Placementpos1.Position + Vector3.new(0,0,0)))
b.MachineGun.Bipod.Transparency.Transparency = 0
end)