[JamesP81]

Seems like something in the 30.30 class would be more appropriate.

30-30 is too low on velocity and might have trouble punching through body armor. Something in the 6.5mm range would probably be good; more stopping power than a .223 but still lighter than .308 or .30-06. Of course, I'm quite fond of the 6.5mm Swedish Mauser, so I might be biased, but it seems to me that a medium sized rifle shooting a similar cartridge might be just the ticket.

9mm is not a good handgun round for combat and never has been. The 1911 should've never been retired. As for submachine guns, the old M3 grease gun probably works as well modern submachine guns at a fraction of the cost.

[TLI]

As for submachine guns, the old M3 grease gun probably works as well modern submachine guns at a fraction of the cost.

If ya like the M3 you would LOVE the S&W76. With a few updates to the basic design such as a modern trigger group (smaller) and running the mag through the handgrip for more barrel length / shorter overall length plus chamber it to .40 cal instead of 9mm you would not be able to get them out of the troops hands.