I know it's only three days in... but now I'm looking forward to the next CoD and hoping they get it right next time. :\
I played CoD4 exhaustively, rented MW2 and decided to skip it. I decided to buy this one and it's just not clicking with me.
I think the maps from CoD4 were better. And the weapons felt better to me as well. The maps here seem to really encourage running and gunning, don't they? At least, that is how everyone plays them, even with Search and Destroy.
Even little things I miss, like that metallic *plink* noise when you got a headshot.
I'm going to give it more time and learn the maps but if it doesn't click with me, I don't know if it's worth keeping just for the zombie mode.