Its interesting to look into Apocalyptic literature of the time. I just googled it and came up with this for example
As Phizzy says, once you see Revelation as just part of a Apocalyptic genre with similar tropes and imagery it stops being that special.
It is like in an old cowboy movie, the man in black hat and shirt is the baddie and the man in white hat and shirt is the goodie. You can guess this straight away if you have seen enough of them.