Belief in God will always require ‘some’ faith

[Vee]

For some Christians, a "world government" is a red flag, and they talk about the beast and the anti-christ as the ones that will set up a world government. So, how do JW's interpret Revelation and what is supposed to happen with Christ and his return and what the beast and the anti-christ are going to do?

It's hard to summarize Revelation. The book is full of symbols that are not to be understood literally.
The Bible identifies current times as the "last days" but since a day means a period of time and not a 24 hour day, we don't know what is the length of this period of time will be. Last days refer to the ending of the current political system, governed by imperfect, corrupt humans.
Some prophecies mentioned in other books have already been fulfilled and others are on going, but some are yet to come.
Revelation starts with a message from Jesus, followed by a vision of God in his throne. Then, a series of visions, each leading to the next : seven seals, seven trumpets, seven bowls, the attack on religion, the destruction of the enemies of God, and the establishment of God's kingdom.
It might seem terrifying, but in reality the message is very positive. God will replace human kingdoms with his own perfect rulership.
A lot will happen between now and then, but I believe the outcome will be amazing and well worth waiting for.
If you ever want to learn more about the Bible, I wouldn't recommend to start with Revelation. It's very hard to understand without the context.