“The Apostles were also clear about Hell being a place of torment.”
True, although as you point out, the lake of fire is only mentioned in Revelations as being the place where Satan and his minions go after the Last Judgement.
So although Hell is described as a place of torment, it’s hard to say what that means exactly. Some theologians think that the condemned simply wander forever in a state of darkness and misery, knowing that they cannot be with God.
Which is a bit like the Greek Hades (described as a dark, shadowy place where the dead wander).
You’re right. OT Hell is Sheol, which is nearly Hades, and simply a holding place for the dead distinguishing between the righteous and the unrighteous dead.
Hades is the word used in the NT as well. Hades or Gehenna is simply translated as Hell. The other word for Hell in the NT occurs in 2 Peter 2:4 and is the word Tartarus.
The words are chosen carefully, but as this thread proves most often misinterpreted by the eisegeiss of the reader.
Look here for more info: http://topicalbible.org/h/hell.htm
Hell as presented in the contexts of respondents to this thread isn’t reconcilable with Biblical teachings on salvation, the Atonement or the nature of God. At each point a Biblical truth conflicts with their definition and gets ignored.