The easiest possible grift is to get a contract to procure (say) 100 rockets, actually build and deliver only 50 (or 20 or 10), then forge the paperwork for the

The easiest possible grift is to get a contract to procure (say) 100 rockets, actually build and deliver only 50 (or 20 or 10), then forge the paperwork for the rest, pay off the right people and split the proceeds. And this kind of thing is notoriously endemic in the Russian army.