I was mustered out of the service just about 2 weeks Before the First Infantry Division went into Viet Nam. The version we sang included these verses, which supply the title to Tim O'Brien's
classic war novel:

If I die in a combat zone;
Box me up and send me home.
Bury me just six feet deep,
Put cross rifles at my feet.
Fold my arms across my chest,
And tell my mom I did my best.

Sound it off
One, two!
Hit it again
Three, four!
Bring 'er on down!
One two three four, one, two--three four.