How can my gunscript work perfectly for one player but not for the other?[semi-solved, closed]

I have no better way to explain this other then a visual example of what it happening.

--player variables
local player = game.Players.LocalPlayer
local mouse = player:GetMouse()

--gun variables
local gun = script.Parent 
local ammo = 15
local magammo = ammo
local reloading = false
local auto = false -- set to false if you do not want the gun to be automatic
local firing = false
local CanChangeFireModes = false 
--^^If set to true the player can press v to change firemodes from auto to semi and semi to auto

local debounce = false

if not game.workspace:FindFirstChild("Bullet") then
	local bullet_storage = Instance.new("Folder", workspace)
	bullet_storage.Name = "Bullet"
else
	--nothing
end

function getBullet()
	print(ammo)
	if ammo > 0 then
		if debounce == false then
			debounce = true
			ammo = ammo - 1
			gun.Handle.Fire:Play()
			local mh = mouse.Hit
			local B = Instance.new("Part", workspace.Bullet)
			game:GetService("Debris"):AddItem(B, 2)
			B.CFrame = gun.Main.CFrame + (player.Character.Torso.CFrame.lookVector)
			B.CFrame = CFrame.new(B.Position, mh.p)
			B.FormFactor = "Custom"
			B.Size = Vector3.new(0.2, 0.2, 0.2)
			B.BrickColor = BrickColor.Black()
			B.CanCollide = false
			local velo = Instance.new("BodyVelocity", B)
			velo.velocity = B.CFrame.lookVector * 120
			velo.maxForce = Vector3.new(math.huge, math.huge, math.huge)
			B.Touched:connect(function(hit)
				wait(0.001)
				B:Destroy()
				local playerHit = game.Players:GetPlayerFromCharacter(hit.Parent)
				local humanoid = hit.Parent:FindFirstChild("Humanoid")
				if playerHit and humanoid and player.TeamColor ~= playerHit.TeamColor then
					humanoid:TakeDamage(25, 30)
				end
			end)
		wait(0)
		debounce = false
		end
	end
end

function autofire()
	if ammo > 0 then
		while firing == true do
			if firing == true and ammo <= 0 then
				firing = false
			end
			print(ammo)
			wait(0)
			gun.Handle.Fire:Play()
			local mh = mouse.Hit
			local B = Instance.new("Part", workspace.Bullet)
			game:GetService("Debris"):AddItem(B, 2)
			B.CFrame = gun.Main.CFrame + (player.Character.Torso.CFrame.lookVector)
			B.CFrame = CFrame.new(B.Position, mh.p)
			B.FormFactor = "Custom"
			B.Size = Vector3.new(0.2, 0.2, 0.2)
			B.BrickColor = BrickColor.Black()
			B.CanCollide = false
			ammo = ammo - 1
			local velo = Instance.new("BodyVelocity", B)
			velo.velocity = B.CFrame.lookVector * 120
			velo.maxForce = Vector3.new(math.huge, math.huge, math.huge)
			B.Touched:connect(function(hit)
				wait(0.001)
				B:Destroy()
				local playerHit = game.Players:GetPlayerFromCharacter(hit.Parent)
				local humanoid = hit.Parent:FindFirstChild("Humanoid")
				if playerHit and humanoid and player.TeamColor ~= playerHit.TeamColor then
					humanoid:TakeDamage(25, 30)
				end
			end)
		wait(0.005)
		end
	end
end

mouse.Button1Down:connect(function()
	if auto == true then
		firing = true
		autofire()
	else
		getBullet()
	end
	if ammo <= 0 then
		print('reloading')
		wait(1)
		ammo = magammo
	end
end)

mouse.Button1Up:connect(function()
	if firing == true then
		firing = false
	end
end)

local uis = game:GetService("UserInputService") -- allows firemode change
uis.InputBegan:connect(function(inputObject, gameProcessedEvent)
	if inputObject.KeyCode == Enum.KeyCode.V and CanChangeFireModes == true then
		if auto == true then
			auto = false
		else
			auto = true
		end
	end
end)

This is the script that is messing up.

What is happening? When one player shoots the bullets will fire correctly. If there is another player in the game and he shoots the gun the bullets act as if they hit something and fly back at the player who shot it.

For a visual example you can go here: http://www.roblox.com/games/347680497/Desert-Airsoft-Pre-Alpha-update