I don't think I will get bored of Black Ops 2 Simply because of Zombies, When I get bored of Multiplayer I will jump on Zombies
Multiplayer is good anyway on Black Ops 2, The map design is better than MW3, more on Par with Black Ops 1, as the maps are Dynamic again! I like this on the Treyarch games!
I hated MW3 Multiplayer from Day 1 because of the FMG's and their bullshitness :p
Now that I have leveled up fully I can just chill out on the game, Just go and get all challenges done and all that