"No game sessions available."
More like "No QA available," since it looks like plenty of "game sessions" are "available" to me, Treyarch. I just can't join them due to your busted ass multiplayer setup. The NAT on my router is open, and every other game works fine on Live, so it isn't anything on my end. Looking around the net, seems like a lot of people are having this problem. Fix it.
Activision got me once with the absolute crap that was the COD2 multiplayer for four months (until IW got around to fixing it, after months of denial that there was even a problem). If you get me again with this crap, no more Activision for me. I'm tired of being your f*cking Beta tester.