- Maps are WAY too big
- OP weapons (Although I don't have them all yet, will have to wait and see, grrrrrr flamethrower

- Sound
- Crap movement
- Tanks!
None of those are present in BO. The few maps I played so far have been ok in size. I played one large map (Array iirc, the one with the big circle kind of building in the middle) but even that one was fun to play. The only map I hated was the extremely tiny map with all the dolls (Nuketown?), but then, I didn't like maps like Shipment and Scrapyard either

A huge improvement over WaW.
And the most fun part about this all is that if you enjoy this game, you would enjoy MW2
