Sounds like you've been listening rapt to a few too many grizzled old soldiers with an axe to grind on Friday afternoons in the mess, mick.
Bushranger71, (some of us know him as BD), did three tours - that's three years - in SVN. But I see now that he, along with everyone else who wore a blue cap up there, was swanning around in five star hotels (lots of them in Vung Tau at the time) and working strictly Monday to Friday and office hours only.
Give me a break. You give your age as 46 in your profile. Are you sure you didn't mis-key? Maybe you meant 16?
Only someone of that age is so sure he's right and everyone else is wrong.