Probably not the right place to post this but no other sub-forum seemed to fit the bill;
would anyone be interested in a couple rounds of Marathon Survival (not XBLA; I've been wanting to try out Benoit's version). As you know, the MP lobby isn't the most populated..
Marathon Survival MP
The Discord seems to be the more usual place to arrange netgames these days:
https://discord.gg/c7rEVgY
https://discord.gg/c7rEVgY