9mm; A .45 round set to stun.........
Why did the US military first adopt the .45?

(Those that do NOT learn from history are dammed to repeat it....)
Then we got sissy leadership and changed the army sidearm to a 9mm so all the sissies could at least hold the weapon up.
SF was force fed the 9mm.
I'm sure they would rather have the .45 back as their round of choice. There are no sissies in Special Forces (that I know of).
And I'm sure the SEALS/MARSOC would say the same thing. (AFSOC would rather employ .22's.......

)