I would rather be in the bush every day that have to have served at Cam Rahn Bay. That had to have been the longest,most boring,AND hottest year of your life.
there was no fully safe place, although Saigon was probably safer than Central Park at night.
Most big VN cities were probably a lot safer than Fayetteville on a Saturday night back in the 60's. There were people who spent 5-6 years in VN,and never once heard a shot fired.