They have been in console race for more than 20 years but failed to create an universe more than Halo-Gears-Forza. They have tried everything, created open world action games, funded JRPG's, tried the revive Rare best way possible... None of them worked out. Xbox remained as a Halo machine. "If we buy this IP, their audience will flock to our platform" is a broken philosophy and they still haven't given up on that. And now they're hoarding classic franchises, keeping them away from their home. I'll always hope Phil will do the right thing and let the things go.
Exclusive CoD will sell more PC and graphics cards rather than Xbox consoles. Playstation owners will not buy a whole console for a single game.