Gate: Thus Super Earth liberated there

It was a glorious day on super earth. Everyone was free and out doing things by their own accord. But that changed when villainous and barbaric roman cosplaying scum came through a facist gateway to another world. It was up to the power S.E.A.F and the helldivers to take down the facist regime and liberate the human populace.
This is my first time making a story. While I have not watched or read gate, I have seen clips, reviews and read other stories. I hope to hear some criticism and other reviews. With that out the way, enjoy.