From catholic.com:
The word Rapture is connected to the Latin word rapiemur, which appears in Paul’s first letter to the Thessalonians in the Latin Vulgate translation of the Bible. It means to be raised up or caught up:
The dead in Christ will rise first; then we who are alive, who are left, shall be caught up together with them in the clouds to meet the Lord in the air; and so we shall always be with the Lord. (1 Thess. 4:16–17).
Therefore, Catholics believe that those Christians who are still living at the Second Coming of Christ will be gathered together with those who have died in Christ to be forever with the Lord. Catholics do not generally use the term Rapture, nor do they believe in a Rapture that will take place some time before the Second Coming, as do many Evangelicals.
Protestants Dispensationalists use the term rapture to refer to an event in the future when God's chosen ones will be physically removed from Earth so as to be spared the Great Tribulation, which is the persecution by the Antichrist and the False Prophet, of those left behind on Earth prior to Jesus's return. Evangelicals believe Jesus fill physically reign on Earth for a literal thousand years of peace before the Day of the Lord (Judgement Day - cue Terminator theme song).
As it says in the quote, Catholics generally don't use the term to avoid confusion with Evangelical beliefs. Catholics interpret most of Revelation as symbolic, which means no reign of Christ on earth before his return on Judgement Day. The thousand years referred to in Revelation is the Church age, which is arbitrarily long and began with Christ's ascension to Heaven in the 1st century. Christ already rules from Heaven during this period through the Eucharist (Catholic Mass, with its sharing of His body and blood).
I've only begun to engage Catholics about the new story in forums for research purposes. I haven't shared any major details with them, except that I'm writing a Catholic-oriented series of novels about the Second Coming. I haven't received any flak from anyone yet. Serious Catholics probably won't like the ending to the trilogy, since it probably won't include condemnation to the lake of fire of unrepentant sinners.
I don't plan to release Galaxy Tales in its current form. I'm still thinking if there's a way to rewrite it without treating Christianity irreverently (e.g., writing the Heretics Bible with the New Commandments and Jesus's arrival in Joseph's mind, where He tells Joseph that he is the reincarnated second son of twelve children that Christ fathered with Mary Magdalene.) I also don't like the level of violence in Galaxy Tales, but was unable to eliminate most of it as I wrote v3, otherwise the story would have fallen apart. Basically the story needs a complete rewrite.