Black Ops was the only one I ever enjoyed, everything but the singleplayer was fun, not really great or memorable, but fun. If BO3 it's a thing (I'l preferably have something more original, I know it's CoD, but c'mon) it may be the only CoD I own for the whole gen, like BO1 was for the previous one. Every game is pretty much exactly the same so owning more than one for each gen it's a bit of a dumb purchase.
I'm now filled with determination.