Darkness and Light
answers some of your questions....
Before creation God made a short list of people that will enter heaven.
Those people are called the elect. Estimated 1-5% of all people ever born.
All other will enter hell with real fire. Estimated 95-99% of all people ever born.
God decided that and there is absolutely nothing man can do to change that.
100% enters heaven. God decided that before creation.
"Each is saved in his own order."
Personally I call the group that's saved first the elect. That's my opinion and I don't know that the general UR opinion.
There is no fire to torture. But God does correct/punish sinners. But in way that's more father like.
When a normal human father punish his kid it's done to make it repent and learn. It may hurt but it's not torture with boiling oil and whips. (like hell)
I think there is no agreement if that correction happens in this life, in the after life, or both.
I'm sure others will add to this thread. (and debunk me)