So if you don't know the true storyline then this might be confusing to you so try just try to understand your best you can.

So richtofen is trying out his teleporters,doing a few more tests but on one test he goes to somewhere he doesn't expect.Not only to a different place but a different time completely.
Richtofen is somewhere called shangri-la (paradise) and the people there worshipped him like a God,but there Was some other type of creature there something called the vrillya(these are aliens well sort of more like things who gave primis the power,primis you will find out later).
And some richtofen took control of this place very quickly and found yet again another mpd but this time it had a strange artifact inside it.
It was called the golden rod(this object is very powerful as you will learn).So Richtofen manages to get back to the der reisse factory. And
T

hen some how looses the golden rod as he was trying to get away from the hordes at der reisse. And the way they escaped is well by the wonder waffe DG2 being shot into the teleporter as richtofen, Taeko,Dempsey and Nikolai entered it and we'll they went forward in time. To Kino der toten (cinema of the undead) and yes this is a group 935 facilitie but it was Maxis's and Richtofen did not know of this.