There isnt and very few would even make the cut or even want to. Being a combat soldier is utterly miserable, you have to really be tough-minded and willing to endure things that would make the enemy cut and run if you want to be a good combat soldier. Even then you would still have to prove yourself a combat shooter, if you can hit a target on a range that is great, now do it while someone is shooting at you and there is all kinds of noise.