Campaign is ridiculously bad, rushed and about 10% effort.
They've obviously put their time into the Warzone (New map), MP and Zombies.
I'm still pumped for the MP, those classic maps again, I'm also interested to see how they migrate the MW2 guns over, from what I've read they are balancing the damage, recoil patterns, range and handling, so they will definitely be different to what they were in MW2