question- when they had their 2 heavenly classes did they teach 'paradise earth"?
There are others here who have a far better grasp than I do, but I believe the Bible Students' beliefs were along these lines:
1) Bible Students would go to heaven and rule as part of the 144,000
2) Other Christians who weren't quite so good would go to heaven but not rule
3) Armageddon was not thought of as destroying 99.9% of earth's population. It was primarily targeted toward "kings and military forces", and regular folks who were not Christian but not necessarily opposed to it would live on a paradise earth (as in "millions now living will never die"). Also the pre-Christian "faithful ones of old" would be resurrected to life on earth.