Hand-to-hand combat system not working, a little help?

INFORMATION: I was making a left and right mouse button hand-to-hand combat system, but I've hit a stump that i need help solving.

PROBLEM: I wanted to make it where if you press the left button four times than the right button quick enough, it would do a special action, but when I test it out, nothing happens.

CODE:

UserInputService.InputBegan:Connect(function(Input, Processed)
	if Processed then return end
	if Input.UserInputType == Enum.UserInputType.MouseButton1 then -- Light Attack
		if not Attacking then
			Attacking = true
			Action = "Light Attack"
			
			if Airborn == true then
				print("Air Cancel")
				-- Stuff
			else
				print("Light Attack")
				-- Normal Function
				if tick()-Timer > 1 then
					L_Combo = 0
					H_Combo = 0
					Action = ""
				end
				
				L_Combo = L_Combo + 1
				
				-- Combo Function
				if H_Combo == 3 and L_Combo == 1 then
					print("Kick Away")
					H_Combo = 0
					L_Combo = 0
				end
				
				--[[
				local Animation = Humanoid:LoadAnimation(Animations["L_Attack"..L_Combo])
				Animation:Play()
				
				Events["Attack"]:InvokeServer(Action)
				--]]
				
				if L_Combo >= 5 then
					L_Combo = 0
				end
			end
			
			wait(0.4)
			Attacking = false
			Action = ""
		end
	elseif Input.UserInputType == Enum.UserInputType.MouseButton2 then -- Heavy Attack
		if not Attacking then
			Attacking = true
			Action = "Heavy Attack"
			
			if Airborn == true then
				print("Downward Kick")
				-- Stuff
			else
				print("Heavy Attack")
				-- Normal Function
				if tick()-Timer > 1 then
					L_Combo = 0
					H_Combo = 0
					Action = ""
				end
				
				H_Combo = H_Combo + 1
				
				-- Combo Function
				if L_Combo == 4 and H_Combo == 1 then
					print("Launcher")
					H_Combo = 0
					L_Combo = 0
				end
				
				--[[
				local Animation = Humanoid:LoadAnimation(Animations["H_Attack"..H_Combo])
				Animation:Play()
				
				Events["Attack"]:InvokeServer(Action)
				--]]
				
				if H_Combo >= 4 then
					H_Combo = 0
				end
			end
			
			wait(0.5)
			Attacking = false
			Action = ""
		end
	end
end)

Can I get some assistance on solving this?