Played Black Ops MP a bit more. Some thoughts-
Textures a bit a muddy in some places, but it's not that bad.
The biggest downfall compared to Mw2 are the sounds. The sounds of guns and explosions are much softer and not in your face. The ambient sounds made MW2 amazing with surround sound. It's just not as good in BO.
BO does a lot of small things right. Little tweaks make is a lot more enjoyable. Some examples- when playing a game with designations, like a big red "DEFEND A" over the search and destroy site, those tags actually fade out when you look at them so they don't obscure your vision. When making classes, you can actually copy classes so you can just modify an existing class instead of having to go off the default. And the obvious, you can back out and take the party with you.
The gun modifications are rough ridin' bad ass. My Famas looks amazzzzzzzzzzzing.
Finally, I really miss Hardcore Moshpit.