Multiplayer: not great.in my opinion the worst black ops campaign so far. The maps aren't great, and there's not many of them and you keep getting a select few of the maps all the time. The guns are good with lots to do they will keep you busy ranking up and upgrading. Using guns on zombies aswell also upgrades your weapons for multilayer so if your having trouble getting kills and want to rank your gun up faster use it on zombies.
Campaign: good campaign not great but feels like its only half a campaign its very short and missions aren't that different apart from a couple.
Zombies: zombies is by far the best feature on this call of duty its so much easier to get things done aswell like turning in the power upgrading weapons and finding wonder weapons.
Overall its a good game not the best call of duty not even the best black ops to be fair but as updates come out hopefully things will change.