What might Russia want to achieve in nuclear weapon sales and proliferation?

The reason why Russia is wanting to expand its nuclear capability in the Middle East, offering nuclear weapons for sale to Saudi Arabia, Egypt, and Jordan and others could be partially explained by the fact that they’re just wanting to increase their military sales for economic reasons. On the other hand, there could be other strategies involved. What might Russia want to achieve in these nuclear weapon sales and proliferation? Is there a deeper strategy? What might that be? Does Russia have the economy to become a Super Power again?