The Bible Vs. Flat Earth & Globe Models

Was reading Revelation 1:7 and though to myself there is no way that everyone on earth would see Jesus when he returns if we are truly on a globe model. Only one side of the planet would see his return and since we know that the Bible is true and correct then that means the problem is me or something that I have been taught. So I thought about it and said what if Christ is coming back to a flat earth and not a globe. Well, if that is the case then lets see. If he comes in and the sky or firmament split open right at the top it would then be possiable for everyone to she his glorious return. Take a look and tell me what you think.