Are you searching for hunter or monster? I play most days on Xbox and can tell you that there’s definitely a community playing both on Ranked and on Custom game modes. I play mainly in the private games, but there are usually a few hunter ‘pre-mades’ that are around silver Expert and above. If you can put a team together, there’s always monsters online in my experience.
If you’re struggling, the times that seem to be most busy are from 19.00 GMT (14.00 UTC) and onwards into the evening US.
As has been said before, definitely check out the Evolve Official Club on Xbox or the facebook group that @The_Little_Jay suggested (I’m a mod there and do most of the posting haha). Something not yet suggested would be to go onto Twitch and see who is streaming on Xbox. That will give you an indication of if there are teams online, and they may allow you to jump in for a few games. Add them all and start building up your network.
You’re welcome to add me and I’ll try to get you into some custom games, although fair warning: Whilst most of the guys playing are very warm, some people are SUPER competitive, so it may be a little stressful.
My Gamertag is: I Pirie I (that’s an ‘i’ before and after my name).
I’ve not seen this before, so I can’t help you there I’m afraid!