GATE : Thus the Greater Nazi Reich fought and met Other-Worlders

In Oktober of 1984, a Gate opened in the West Sector of Neu Berlin. Onlookers stopped to take pictures and observe the Structure that appeared from thin air. Suddenly, the Gate opened and hordes of Men in Primitive Equipment poured through, slaughtering anyone they saw. But as they approached the Center, Metal Beasts they had never imagined to exist came from corners and ripped them apart, more machines arrived, bigger in size and more destructive tore through the thousands of the Men easily. Then Humans in weird Armor arrived with Metal Contraptions that ran over the Men with their circle-shaped feet. The Invasion had turned into a Slaughterhouse for the Invaders.
(The pictures that are not from me that go into this novel have their credit go to their owners. The cover is not mine)