I've only got the PS3 version, and I never touch it.. is it really so hard to look online and wait on someone to join? The PS3 rooms get filled pretty fast, and if you've got no mic, you usually get kicked... typical 360 frustrations for PS3 users... On 360, it's more understandable considering the damn mic comes with the system..
I've never been online with the 360 version, but, you make it sound pretty dead... -_-