Not me, but an older guy I know was a marine (probably ~50 years ago). During training the drill sergeant asked him his name and he couldn't say it. Once they realized he stutters they offered him the options to quit without penalty. He stayed and it was never brought up again. I have nothing to add to this story, however, society is far more accepting of stuttering today than 50 years ago so my guess is you shouldn't have many problems.