Gears of War 4 XBOX ONE Cannot Play Online CO OP

SO I was wondering if anyone on here is having the problem of not being able to play CO OP Campaign on XBOX ONE?

If you have and have found a Solution PLEASE PLEASE PLEASE Share your infinite wisdom.

Thanks

What do you mean by CO-OP campaign? Local Co-op or through Xbox Live? I have had 0 issues playing CO-OP online with friends but have not tried any public games or local co-op.