im excited to get stuck in to multiplayer and i loved every cod since i started playing back in the waw days

Compare Halo and Call of Duty in regards to multiplayer, and you'll see they're not so different in how they choose to evolve the gameplay. The only time Halo went out of their typical Halo gameplay was with Halo: Reach. The same thing could be happening with Advanced Warfare.

The multiplayer of Call of Duty is quite pleasing and perfect already, it would be hard to heavily change the gameplay without somehow ruining it. The only problem with COD Multiplayer is the community. And people seem to forget that it's not JUST a multiplayer game!