Gears of War Judgement - Maps

I have the first XBOX 1 with the GOW Ultimate with the beta for GOW 4. I miss playing Judgement and now there are like 25 people ever on at a time and I can’t join every time because I don’t have a map. Is it possible to get the other maps? If I go into marketplace it completely crashes my xbox and have to start over. Since there are so few of us, can you just give us the access. I look forward to GOW 5 but its’ a long way off and still would like to keep playing this as long as possible. I like the fact that you aren’t running around getting weapons, etc. I’m talking about Survival not Versus.