Why won't my raycast do damage in game but in studio?

I'm not too sure if this works, after rereading it a couple of times it seems to make sense.

If there's any errors please tell me on what line it is on. If you have any questions, i'll do my best to answer them.

Script where the gun is

function createRay()
    local muzzle = gun[gun.Name].Flash
    local fire = PathToRemoteFunction:InvokeServer(mouse.Hit.p,(mouse.hit.p-char.Head.Position).unit*s.range, s)
	if fire == "hit" then
		player.PlayerGui.HUD.Crosshair.Hit:Play()
        player.PlayerGui.HUD.Crosshair.Frame.Hitmarker.Visible = true
	end
end

Script that links to the remote

PathToRemoteFunction.OnServerInvoke:Connect(function (player, pos, dir, s)
	local function FindParts(obj) --used to find the baseparts of an object
		local list = {}
		for _,v in ipairs(obj:GetChildren()) do
			if v:IsA("BasePart") then
				table.insert(list, v)
			end
		end
		return list
	end
	local ray = Ray.new(pos,dir)
	local hit,pos = workspace:FindPartOnRayWithIgnoreList(ray,FindParts(player.Character))
	if hit then
        local human = hit.Parent:FindFirstChild("Humanoid")
        if human then
            if human.Health > 0 then
				if hit.Name == "Head" or hit.Parent:IsA("Hat") or hit.Parent:IsA("Accessory") then --included accessory since roblox has made them kinda replace hats
					human = human.Health - s.dmg * s.multi
					return "hit"
				else
					human = human.Health - s.dmg
					return "hit"
				end
            end
        end
    end
end)

This in theory should replicate the remote onto the server and the damage