Halo. Call of duty is good, but it can't stand up to halo. Halo has a better storyline, better multiplayer, and more game modes. To me call of duty has not changed that much over the years I only play call of duty for zombies and quick scoping usually. But why is it always about Halo and call of duty?, do you guys not play any other games?, like The elder scrolls series, bio shock series, left for dead. etc..