He is trying to rewrite time. Stop everything from happening. "Fix what is broken"? Well with this i think he is talking about the Seal from Origins, When they break the seal. But remember its a "seal" meaning someone had to put it there so maybe this is his goal and the old maps they're bringing back i think will be Der Riese(the giant), Moon because remember the only way for him to get back was touching the ball so he has to stop that to where he doesn't turn evil from the ball again. also Mob of the Dead for various reasons and Origins because he needs to stop the seal from being opened. now i havnt watched any videos but i have paid attention to the story and this is my thoughts on it. Anyways Hope this helped.

I had some sort of the Same idea, because mood is the map Richthofen went evil and the rest of the characters wasn't on mood I don't think just Richthofen and 3 others and Takeo says 'we don't know what sort of adventure he has gone on'